Method and device in communication nodes for wireless communication

ABSTRACT

A method and a device in a node for wireless communications. A first node monitors or drops monitoring a first signal in a first resource block; and transmits a second signal in a second resource block. The second resource block corresponds to a first index; the first resource block is reserved for a HARQ-ACK for a bit block set transmitted in a third resource block; when a first condition set is fulfilled, a spatial relation of the second signal is unrelated to the first index; when the first condition set is unfulfilled, the first index is used for determining the spatial relation of the second signal; the first condition set relates to whether the first signal is conveyed in the first resource block. The method above provides an easy implementation of beamforming in a V2X system, which optimizes gains of beamforming and also prevents complicated signaling interaction.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of the U.S. patent application Ser.No. 18/097,174, filed on Jan. 13, 2023, which is a continuation of theU.S. patent application Ser. No. 17/384,819, filed on Jul. 26, 2021,which claims the priority benefit of Chinese Patent ApplicationNo.202010748144.0, filed on 30 Jul. 2020, and the priority benefit ofChinese Patent Application No.202010779599.9, filed on 5 Aug. 2020, andthe priority benefit of Chinese Patent Application No.202010837358.5,filed on 19 Aug. 2020, the full disclosure of which is incorporatedherein by reference.

BACKGROUND Technical Field

The present disclosure relates to transmission methods and devices inwireless communication systems, and in particular to a method and deviceof sidelink-related transmission in wireless communications.

Related Art

Application scenarios of future wireless communication systems arebecoming increasingly diversified, and different application scenarioshave different performance demands on systems. In order to meetdifferent performance requirements of various application scenarios, the3rd Generation Partner Project (3GPP) Radio Access Network (RAN) #72plenary decided to conduct the study of New Radio (NR), or what iscalled fifth Generation (5G). The work Item (WI) of NR was approved atthe 3GPP RAN #75 session to standardize the NR.

In response to rapidly growing Vehicle-to-Everything (V2X) traffic, 3GPPhas started standards setting and research work under the framework ofNR. Currently, 3GPP has completed planning work targeting 5G V2Xrequirements and has included these requirements into standard TS22.886,where 3GPP identifies and defines 4 major Use Case Groups, coveringcases of Vehicles Platooning, supporting Extended Sensors, AdvancedDriving and Remote Driving. At 3GPP RAN #80 Plenary Session, thetechnical Study Item (SI) of NR V2X was started.

SUMMARY

A WI of NR R (release) 17 was approved at the 3GPP RAN #86 Plenary,including reference by the V2X system under FR2 band. In the FR2 band,there are two important means of guaranteeing performance, namely,massive MIMO and beam-based transmission. Multiple antennas form anarrow beam through beamforming, so that energy can be concentrated in aspecific direction, thus enhancing the communication quality. Since theway of V2X resource occupation differs a lot from a Uu interface, thecommonly used scheme of beam management or transmission for the Uuinterface cannot be directly applied in the V2X system. To sum up, it isnecessary to find out how to support beamforming in the V2X system, inview of that, the present disclosure disclosed a solution. It should benoted that although only V2X and beamforming-based transmissionscenarios were stated above for example, this disclosure is alsoapplicable to other scenarios such as cellular network andprecoding-based transmissions, where similar technical effects can beachieved. Additionally, the adoption of a unified solution for variousscenarios (including but not limited to V2X, cellular network,beamforming-based and precoding-based transmissions) contributes to thereduction of hardcore complexity and costs. If no conflict is incurred,the embodiments of a first node in the present disclosure and thecharacteristics of the embodiments can be applied to a second node, andvice versa. And the embodiments in the present disclosure and thecharacteristics of the embodiments can be arbitrarily combined if thereis no conflict.

To ensure beam alignment between both sides of communication, theconcept of beam management and beam-based channel measurement/feedbackwas introduced in NR R15 and R16. Resource occupation and Channel StateInformation (CSI) reporting in V2X are implemented quite differentlyfrom Uu interface, so the scheme of beam management generally used onthe Uu interface is not directly applicable to the V2X system.Therefore, how to conduct beam management in the V2X system needs to beaddressed, and for that, the present disclosure provides a solution. Itshould be noted that although only V2X and beamforming-basedtransmission scenarios were stated above for example, this disclosure isalso applicable to other scenarios such as cellular network andprecoding-based transmissions, where similar technical effects can beachieved. Additionally, the adoption of a unified solution for variousscenarios (including but not limited to V2X, cellular network,beamforming-based and precoding-based transmissions) contributes to thereduction of hardcore complexity and costs. If no conflict is incurred,the embodiments of a first node in the present disclosure and thecharacteristics of the embodiments can be applied to a second node, andvice versa. And the embodiments in the present disclosure and thecharacteristics of the embodiments can be arbitrarily combined if thereis no conflict.

Compared with the existing Long-term Evolution (LTE) V2X system, an NRV2X system has a distinctive feature of supporting unicast transmissionand power control based on sidelink pathloss. Based on the conclusiondrawn at the 3GPP RAN1 #97 conference, when a node is simultaneouslyconfigured with downlink pathloss-based power control and sidelinkpathloss-based power control, the node will choose a smaller value ofpower values respectively acquired through the two methods. Asignificant technical feature of an NR system is support for beam-basedtransmission. Due to the beam directivity, how a node interferes withother nodes is highly dependent on the beam adopted. Therefore, how tocontrol the interference to the cellular network in a beam-based V2Xtransmission becomes an issue, for which the present disclosure providesa solution. It should be noted that although only V2X and beam-basedtransmission scenarios were stated above for example, this disclosure isalso applicable to other scenarios such as cellular network and non-beamtransmissions, where similar technical effects can be achieved.Additionally, the adoption of a unified solution for various scenarios(including but not limited to V2X, cellular network, beam-based andnon-beam transmissions) contributes to the reduction of hardcorecomplexity and costs. If no conflict is incurred, the embodiments of anynode in the present disclosure and the characteristics of theembodiments can be applied to any other node, and vice versa. And theembodiments in the present disclosure and the characteristics of theembodiments can be arbitrarily combined if there is no conflict.

The present disclosure provides a method in a first node for wirelesscommunication, comprising:

-   -   monitoring a first signal in a first resource block, or,        dropping monitoring a first signal in a first resource block;        and

transmitting a second signal in a second resource block;

herein, the second resource block corresponds to a first index, thefirst index being a non-negative integer; the first resource block isreserved for a HARQ-ACK of a bit block set transmitted in a thirdresource block; whether a first condition set is fulfilled is used todetermine whether the first index is used for determining a spatialrelation of the second signal, and the first condition set is related towhether the first signal is conveyed in the first resource block; whenthe first condition set is fulfilled, the spatial relation of the secondsignal is unrelated to the first index; when the first condition set isnot fulfilled, the first index is used to determine the spatial relationof the second signal.

In one embodiment, a problem to be solved in the present disclosureincludes how a transmitting end chooses a Tx beam in a V2X system. Asproposed by the above method, a Tx beam is determined through HARQfeedback, hence a solution to this problem.

In one embodiment, characteristics of the above method include: if asignal transmitted by a beam can be received correctly, the transmittingend will continue to use that beam; otherwise, the transmitting end willresort to beam switching or beam sweeping.

In one embodiment, advantages of the above method include offering asimple way of implementing beam-based transmission in the V2X system.

In one embodiment, advantages of the above method include: selecting abeam according to the actual transmission quality helps improve thetransmission performance and prevent complicated signaling interactionand excessive overhead produced therefrom.

According to one aspect of the present disclosure, comprising:

-   -   transmitting a first information block;    -   herein, the second resource block and the third resource block        are respectively resource blocks of K resource blocks, K being a        positive integer greater than 1; the first information block is        used to determine the K resource blocks and K indexes, the K        indexes respectively corresponding to the K resource blocks; any        index of the K indexes is a non-negative integer; and the first        index is one of the K indexes that corresponds to the second        resource block.

In one embodiment, advantages of the above method include: by adoptingthe technique of beam sweeping in reserved resources, the reliability ofdata transmission can be increased.

According to one aspect of the present disclosure, comprising:

-   -   transmitting a third signal in the third resource block, or,        dropping transmission of any signal in the third resource block;    -   herein, the third signal carries a first bit block set, while        the first signal carries a HARQ-ACK for the first bit block set.

According to one aspect of the present disclosure, characterized in thatthe third resource block corresponds to a second index; the first indexand the second index are respectively used to determine a firstreference signal and a second reference signal; when the first conditionset is not fulfilled, the first reference signal is used to determinethe spatial relation of the second signal; when the first condition setis fulfilled, the second reference signal is used to determine thespatial relation of the second signal.

In one embodiment, advantages of the above method include: a switchbetween beam sweeping and a specific beam according to an actualreceived quality can optimize the gains of beamforming and avoidcomplicated signaling interaction and extra overhead that may accompany.

According to one aspect of the present disclosure, characterized in thatthe third resource block corresponds to a second index; when the firstcondition set is fulfilled and the third signal is conveyed in the thirdresource block, the second signal and the third signal are QCL; when thefirst condition set is not fulfilled and the third signal is conveyed inthe third resource block, whether the first index is equal to the secondindex is used to determine whether the second signal and the thirdsignal are QCL.

According to one aspect of the present disclosure, characterized in thatthe first condition set comprises the first signal being conveyed in thefirst resource block and the first signal indicating that a bit blockset transmitted in the third resource block is correctly received.

According to one aspect of the present disclosure, characterized in thatthe first node is a UE.

According to one aspect of the present disclosure, characterized in thatthe first node is a relay node.

The present disclosure provides a method in a second node for wirelesscommunication, comprising:

-   -   transmitting a first signal in a first resource block, or,        dropping transmission of any signal in the first resource block;        and    -   receiving a second signal in a second resource block;    -   herein, the second resource block corresponds to a first index,        the first index being a non-negative integer; the first resource        block is reserved for a HARQ-ACK of a bit block set transmitted        in a third resource block; whether a first condition set is        fulfilled is used to determine whether the first index is used        for determining a spatial relation of the second signal, and the        first condition set is related to whether the first signal is        conveyed in the first resource block; when the first condition        set is fulfilled, the spatial relation of the second signal is        unrelated to the first index; when the first condition set is        not fulfilled, the first index is used to determine the spatial        relation of the second signal.

According to one aspect of the present disclosure, comprising:

-   -   receiving a first information block;    -   herein, the second resource block and the third resource block        are respectively resource blocks of K resource blocks, K being a        positive integer greater than 1; the first information block is        used to determine the K resource blocks and K indexes, the K        indexes respectively corresponding to the K resource blocks; any        index of the K indexes is a non-negative integer; and the first        index is one of the K indexes that corresponds to the second        resource block.

According to one aspect of the present disclosure, comprising:

-   -   blind detecting a third signal in the third resource block;    -   herein, the third signal carries a first bit block set, while        the first signal carries a HARQ-ACK for the first bit block set.

According to one aspect of the present disclosure, characterized in thatthe third resource block corresponds to a second index; the first indexand the second index are respectively used to determine a firstreference signal and a second reference signal; when the first conditionset is not fulfilled, the first reference signal is used to determinethe spatial relation of the second signal; when the first condition setis fulfilled, the second reference signal is used to determine thespatial relation of the second signal.

According to one aspect of the present disclosure, characterized in thatthe third resource block corresponds to a second index; when the firstcondition set is fulfilled and the third signal is conveyed in the thirdresource block, the second signal and the third signal are QCL; when thefirst condition set is not fulfilled and the third signal is conveyed inthe third resource block, whether the first index is equal to the secondindex is used to determine whether the second signal and the thirdsignal are QCL.

According to one aspect of the present disclosure, characterized in thatthe first condition set comprises the first signal being conveyed in thefirst resource block and the first signal indicating that a bit blockset transmitted in the third resource block is correctly received.

The present disclosure provides a first node for wireless communication,comprising:

-   -   a first receiver, which monitors a first signal in a first        resource block, or, drops monitoring a first signal in a first        resource block; and    -   a first transmitter, which transmits a second signal in a second        resource block;    -   herein, the second resource block corresponds to a first index,        the first index being a non-negative integer; the first resource        block is reserved for a HARQ-ACK of a bit block set transmitted        in a third resource block; whether a first condition set is        fulfilled is used to determine whether the first index is used        for determining a spatial relation of the second signal, and the        first condition set is related to whether the first signal is        conveyed in the first resource block; when the first condition        set is fulfilled, the spatial relation of the second signal is        unrelated to the first index; when the first condition set is        not fulfilled, the first index is used to determine the spatial        relation of the second signal.

The present disclosure provides a second node for wirelesscommunication, comprising:

-   -   a second transmitter, which transmits a first signal in a first        resource block, or, drops transmission of any signal in a first        resource block; and    -   a second receiver, which receives a second signal in a second        resource block;    -   herein, the second resource block corresponds to a first index,        the first index being a non-negative integer; the first resource        block is reserved for a HARQ-ACK of a bit block set transmitted        in a third resource block; whether a first condition set is        fulfilled is used to determine whether the first index is used        for determining a spatial relation of the second signal, and the        first condition set is related to whether the first signal is        conveyed in the first resource block; when the first condition        set is fulfilled, the spatial relation of the second signal is        unrelated to the first index; when the first condition set is        not fulfilled, the first index is used to determine the spatial        relation of the second signal.

The present disclosure provides a method in a first node for wirelesscommunication, comprising:

-   -   transmitting a first signal set;    -   herein, time-domain resource(s) occupied by one or more signals        comprised in the first signal set is(are) used for determining a        first time window; the first signal set comprises a first        signal, the first signal comprising a first sub-signal and a        first reference signal; the first sub-signal comprises a first        field, and the first field of the first sub-signal is used for        triggering a first CSI report; a first condition set is used for        determining whether the first node is capable of triggering a        second CSI report in the first time window; when the first        condition set is fulfilled, the first node is unable to trigger        the second CSI report in the first time window; when the first        condition set is not fulfilled, the first node is able to        trigger the second CSI report in the first time window; the        first condition set comprises at least one of a first condition        or a second condition; the first condition comprises that a        number of signals comprised in the first signal set is no less        than a first threshold; the second condition comprises that a        first index is equal to a second index, the first CSI report is        associated with the first index, and the second CSI report is        associated with the second index.

In one embodiment, a problem to be solved in the present disclosureincludes how to perform beam management and beam-based CSImeasurement/reporting in a V2X system. The method given above allows aUser to trigger multiple CSI reports in a time window and then sendsmultiple reference signals to enable a receiving user to choose aTransmitting (Tx) or Receiving (Rx) beam, thus addressing the problem.

In one embodiment, characteristics of the above method include: thefirst CSI report and the second CSI report correspond to a samereference signal used for channel measurement, and the first node cantransmit the reference signal repeatedly in the first time window tomake it easier for a receiving user to select a Rx beam.

In one embodiment, characteristics of the above method include: thefirst CSI report and the second CSI report correspond to two differentreference signals used for channel measurement, and the first node cantransmit the two different reference signals respectively in the firsttime window to make it easier for a receiving user to select atransmitting (Tx) beam.

In one embodiment, advantages of the above method include: using asimple way of implementing beam management and beam-based CSImeasurement/reporting in a V2X system.

In one embodiment, advantages of the above method include: reducing thelatency in beam management, thus improving efficiency.

According to one aspect of the present disclosure, characterized in thatthe first signal set comprises S signals, S being a positive integergreater than 1; the first signal is one of the S signals; the S signalsrespectively comprise S first-type sub-signals, and the S signalsrespectively comprise S reference signals; any one of the S first-typesub-signals comprises the first field, and the first fields respectivelycomprised by the S first-type sub-signals are respectively used fortriggering S CSI reports; the S signals share a same target receiver.

According to one aspect of the present disclosure, characterized in thattime-domain resources occupied by the S signals are respectively usedfor determining S time windows, and the S time windows are used fordetermining the first time window.

According to one aspect of the present disclosure, comprising:

-   -   receiving a first information block;    -   herein, the first information block comprises a first channel        quality and a second channel quality; a measurement on the first        reference signal is used for determining the first channel        quality and the second channel quality, the first channel        quality and the second quality are for a same frequency-domain        resource, and respectively correspond to a first received        quality and a second received quality, the first channel quality        and the second quality being real numbers respectively, the        first received quality being unequal to the second received        quality.

According to one aspect of the present disclosure, comprising:

-   -   transmitting a third signal in a first time-frequency resource        block;    -   herein, a target receiver of the third signal is a target        receiver of the first signal set; a target channel quality is        used for determining a Modulation and Coding Scheme (MCS)        employed by the third signal, and the target channel quality is        either the first channel quality or the second channel quality;        whether the first time-frequency resource block is reserved is        used for determining the target channel quality between the        first channel quality and the second channel quality.

In one embodiment, characteristics of the above method include: thefirst node can determine whether a target receiver of the third signalis capable of receiving the third signal with a best Rx beam based onwhether the first time-frequency resource block is reserved anddetermine a suitable MCS for the third signal accordingly.

In one embodiment, advantages of the above method include: improving theefficiency and reliability of V2X transmission.

According to one aspect of the present disclosure, comprising:

-   -   transmitting a second information block;    -   herein, the second information block comprises configuration        information of the first reference signal and a first parameter,        the first parameter being used to determine the first time        window.

According to one aspect of the present disclosure, characterized in thatthe first node is a UE.

According to one aspect of the present disclosure, characterized in thatthe first node is a relay node.

The present disclosure provides a method in a second node for wirelesscommunication, comprising:

-   -   receiving a first signal set;    -   herein, time-domain resource(s) occupied by one or more signals        comprised in the first signal set is(are) used for determining a        first time window; the first signal set comprises a first        signal, the first signal comprising a first sub-signal and a        first reference signal; the first sub-signal comprises a first        field, and the first field of the first sub-signal is used for        triggering a first CSI report; a first condition set is used for        determining whether a transmitter of the first signal set is        capable of triggering a second CSI report in the first time        window; when the first condition set is fulfilled, the        transmitter of the first signal set is unable to trigger the        second CSI report in the first time window; when the first        condition set is not fulfilled, the transmitter of the first        signal set is able to trigger the second CSI report in the first        time window; the first condition set comprises at least one of a        first condition or a second condition; the first condition        comprises that a number of signals comprised in the first signal        set is no less than a first threshold; the second condition        comprises that a first index is equal to a second index, the        first CSI report is associated with the first index, and the        second CSI report is associated with the second index.

According to one aspect of the present disclosure, characterized in thatthe first signal set comprises S signals, S being a positive integergreater than 1; the first signal is one of the S signals; the S signalsrespectively comprise S first-type sub-signals, and the S signalsrespectively comprise S reference signals; any one of the S first-typesub-signals comprises the first field, and the first fields respectivelycomprised by the S first-type sub-signals are respectively used fortriggering S CSI reports; the S signals share a same target receiver.

According to one aspect of the present disclosure, characterized in thattime-domain resources occupied by the S signals are respectively usedfor determining S time windows, and the S time windows are used fordetermining the first time window.

According to one aspect of the present disclosure, comprising:

-   -   transmitting a first information block;    -   herein, the first information block comprises a first channel        quality and a second channel quality; a measurement on the first        reference signal is used for determining the first channel        quality and the second channel quality, the first channel        quality and the second quality are for a same frequency-domain        resource, and respectively correspond to a first received        quality and a second received quality, the first channel quality        and the second quality being real numbers respectively, the        first received quality being unequal to the second received        quality.

According to one aspect of the present disclosure, comprising:

-   -   receiving a third signal in a first time-frequency resource        block;    -   herein, a transmitter of the third signal is a transmitter of        the first signal set; a target channel quality is used for        determining an MCS of the third signal, and the target channel        quality is either the first channel quality or the second        channel quality; whether the first time-frequency resource block        is reserved is used for determining the target channel quality        between the first channel quality and the second channel        quality.

According to one aspect of the present disclosure, comprising:

-   -   receiving a second information block;    -   herein, the second information block comprises configuration        information of the first reference signal and a first parameter,        the first parameter being used to determine the first time        window.

According to one aspect of the present disclosure, characterized in thatthe second node is a base station.

According to one aspect of the present disclosure, characterized in thatthe second node is a relay node.

The present disclosure provides a first node for wireless communication,comprising:

-   -   a first processor, transmitting a first signal set;    -   herein, time-domain resource(s) occupied by one or more signals        comprised in the first signal set is(are) used for determining a        first time window; the first signal set comprises a first        signal, the first signal comprising a first sub-signal and a        first reference signal; the first sub-signal comprises a first        field, and the first field of the first sub-signal is used for        triggering a first CSI report; a first condition set is used for        determining whether the first node is capable of triggering a        second CSI report in the first time window; when the first        condition set is fulfilled, the first node is unable to trigger        the second CSI report in the first time window; when the first        condition set is not fulfilled, the first node is able to        trigger the second CSI report in the first time window; the        first condition set comprises at least one of a first condition        or a second condition; the first condition comprises that a        number of signals comprised in the first signal set is no less        than a first threshold; the second condition comprises that a        first index is equal to a second index, the first CSI report is        associated with the first index, and the second CSI report is        associated with the second index.

The present disclosure provides a second node for wirelesscommunication, comprising:

-   -   the second processor, receiving a first signal set;    -   herein, time-domain resource(s) occupied by one or more signals        comprised in the first signal set is(are) used for determining a        first time window; the first signal set comprises a first        signal, the first signal comprising a first sub-signal and a        first reference signal; the first sub-signal comprises a first        field, and the first field of the first sub-signal is used for        triggering a first CSI report; a first condition set is used for        determining whether a transmitter of the first signal set is        capable of triggering a second CSI report in the first time        window; when the first condition set is fulfilled, the        transmitter of the first signal set is unable to trigger the        second CSI report in the first time window; when the first        condition set is not fulfilled, the transmitter of the first        signal set is able to trigger the second CSI report in the first        time window; the first condition set comprises at least one of a        first condition or a second condition; the first condition        comprises that a number of signals comprised in the first signal        set is no less than a first threshold; the second condition        comprises that a first index is equal to a second index, the        first CSI report is associated with the first index, and the        second CSI report is associated with the second index.

The present disclosure provides a method in a first node for wirelesscommunication, comprising:

-   -   receiving a first reference signal; and    -   transmitting a first signal;    -   herein, a transmitting (Tx) power of the first signal is a first        power value, a first reference power value is used for        determining the first power value, and the first reference power        value is linear with a first pathloss; a first spatial domain        filter is used for transmitting the first signal; the first node        uses the first spatial domain filter to measure the first        reference signal to obtain the first pathloss; a transmitter of        the first reference signal is different from a target receiver        of the first signal.

In one embodiment, a problem to be solved in the present disclosureincludes how to precisely estimate and control the interference with thecellular network when beam-based transmission is adopted in the V2Xsystem. As described in the above-mentioned method, a spatial domainfilter used for sidelink transmission is adopted to receive a DLreference signal and estimate DL pathloss, thus solving the problem.

In one embodiment, characteristics of the above method include: thefirst reference signal is a downlink reference signal, and the firstsignal is transmitted in sidelink; a spatial domain Tx filter of thefirst signal is used for receiving the first reference signal andestimating a downlink (DL) pathloss for power control of sidelinktransmission.

In one embodiment, advantages of the above method include: by using aspatial domain filter matching with a Tx beam of the first signal tomeasure DL pathloss, it would be more accurate to estimate theinterference of sidelink transmission to a cellular network; it can thusavoid a degradation of sidelink performance due to restrictions over thesidelink transmitting power caused by overestimation of suchinterference.

According to one aspect of the present disclosure, characterized in thata measurement on the first reference signal is used for determining asecond spatial domain filter, the first spatial domain filter beingdifferent from the second spatial domain filter.

According to one aspect of the present disclosure, comprising:

-   -   transmitting a second signal;    -   herein, a transmitting (Tx) power of the second signal is a        second power value, the second reference power value is used for        determining the second power value, and the second reference        power value is linear with a second pathloss; the first node        uses a second spatial domain filter to measure the first        reference signal to obtain the second pathloss; a transmitter of        the first reference signal is the same as a target receiver of        the second signal.

According to one aspect of the present disclosure, comprising:

-   -   receiving other reference signal(s) of K first-type reference        signals other than the first reference signal, K being a        positive integer greater than 1, the first reference signal        being one of the K first-type reference signals;    -   herein, the first node uses the first spatial domain filter to        measure the K first-type reference signals respectively to        obtain K pathlosses; the first pathloss is a smallest one of the        K pathlosses; a transmitter of any first-type reference signal        of the K first-type reference signals is a transmitter of the        first reference signal.

In one embodiment, advantages of the above method include: when workingin a multi-Transmitter-Receiver-Point (multi-TRP)/panel mode, a basestation succeeds in controlling the interference of V2X transmission toeach TRP/panel effectively.

According to one aspect of the present disclosure, characterized in thatthe first spatial domain filter is one of P spatial domain filters, Pbeing a positive integer; the first node uses the P spatial domainfilters to measure the first reference signal respectively to obtain Ppathlosses, and the P pathlosses are used for determining the firstspatial domain filter out of the P spatial domain filters.

In one embodiment, advantages of the above method include: with abalance between the V2X transmitting power and beam gains, the V2Xtransmission quality can be optimized to the largest extent.

According to one aspect of the present disclosure, comprising:

-   -   receiving a third signal;    -   herein, the third signal is used to determine a third pathloss;        the first reference power value and a third reference power        value are jointly used for determining the first power value,        the third reference power value being linear with the third        pathloss; a transmitter of the third signal is different from a        transmitter of the first reference signal.

According to one aspect of the present disclosure, comprising:

-   -   receiving a first information block;    -   herein, the first information block is used for determining        configuration information of the first reference signal.

According to one aspect of the present disclosure, characterized in thatthe first node is a UE.

According to one aspect of the present disclosure, characterized in thatthe first node is a relay node.

The present disclosure provides a method in a second node for wirelesscommunication, comprising:

-   -   transmitting a first reference signal;    -   herein, a transmitter of a first signal uses a first spatial        domain filter to measure the first reference signal to obtain a        first pathloss; a transmitting (Tx) power of the first signal is        a first power value, a first reference power value is used for        determining the first power value, and the first reference power        value is linear with the first pathloss; the first spatial        domain filter is used for transmitting the first signal; a        target receiver of the first signal is different from the second        node.

According to one aspect of the present disclosure, characterized in thata measurement on the first reference signal is used for determining asecond spatial domain filter, the first spatial domain filter beingdifferent from the second spatial domain filter.

According to one aspect of the present disclosure, comprising:

-   -   receiving a second signal;    -   herein, a transmitting (Tx) power of the second signal is a        second power value, the second reference power value is used for        determining the second power value, and the second reference        power value is linear with a second pathloss; a transmitter of        the first signal uses a second spatial domain filter to measure        the first reference signal to obtain the second pathloss; a        target receiver of the second signal is the second node.

According to one aspect of the present disclosure, comprising:

-   -   transmitting other reference signal(s) of K first-type reference        signals other than the first reference signal, K being a        positive integer greater than 1, the first reference signal        being one of the K first-type reference signals;    -   herein, a transmitter of the first signal uses the first spatial        domain filter to measure the K first-type reference signals        respectively to obtain K pathlosses; the first pathloss is a        smallest one of the K pathlosses.

According to one aspect of the present disclosure, characterized in thatthe first spatial domain filter is one of P spatial domain filters, Pbeing a positive integer; a transmitter of the first signal uses the Pspatial domain filters to measure the first reference signalrespectively to obtain P pathlosses, and the P pathlosses are used fordetermining the first spatial domain filter out of the P spatial domainfilters.

According to one aspect of the present disclosure, characterized in thata third signal is used to determine a third pathloss; the firstreference power value and a third reference power value are jointly usedfor determining the first power value, the third reference power valuebeing linear with the third pathloss; a transmitter of the third signalis different from the second node.

According to one aspect of the present disclosure, comprising:

-   -   transmitting a first information block;    -   herein, the first information block is used for determining        configuration information of the first reference signal.

According to one aspect of the present disclosure, characterized in thatthe second node is a base station.

According to one aspect of the present disclosure, characterized in thatthe second node is a relay node.

The present disclosure provides a method in a third node for wirelesscommunication, comprising:

-   -   receiving a first signal;    -   herein, a Tx power of the first signal is a first power value, a        first reference power value is used for determining the first        power value, and the first reference power value is linear with        a first pathloss; a first spatial domain filter is used for        transmitting the first signal; a transmitter of the first signal        uses the first spatial domain filter to measure a first        reference signal to obtain the first pathloss; a transmitter of        the first reference signal is different from the third node.

According to one aspect of the present disclosure, characterized in thata measurement on the first reference signal is used for determining asecond spatial domain filter, the first spatial domain filter beingdifferent from the second spatial domain filter.

According to one aspect of the present disclosure, characterized in thata transmitter of the first signal transmits a second signal, and atarget receiver of the second signal is the same as a transmitter of thefirst reference signal; a Tx power of the second signal is a secondpower value, the second reference power value is used for determiningthe second power value, and the second reference power value is linearwith a second pathloss; a transmitter of the first signal uses a secondspatial domain filter to measure the first reference signal to obtainthe second pathloss.

According to one aspect of the present disclosure, characterized in thatthe first reference signal is one of K first-type reference signals, Kbeing a positive integer greater than 1; a transmitter of the firstsignal uses the first spatial domain filter to measure the K first-typereference signals respectively to obtain K pathlosses; the firstpathloss is a smallest one of the K pathlosses; a transmitter of anyfirst-type reference signal of the K first-type reference signals is atransmitter of the first reference signal.

According to one aspect of the present disclosure, characterized in thatthe first spatial domain filter is one of P spatial domain filters, Pbeing a positive integer; a transmitter of the first signal uses the Pspatial domain filters to measure the first reference signalrespectively to obtain P pathlosses, and the P pathlosses are used fordetermining the first spatial domain filter out of the P spatial domainfilters.

According to one aspect of the present disclosure, characterized in thata third signal is used by a transmitter of the first signal fordetermining a third pathloss; the first reference power value and athird reference power value are jointly used for determining the firstpower value, the third reference power value being linear with the thirdpathloss; a transmitter of the third signal is different from atransmitter of the first reference signal.

According to one aspect of the present disclosure, characterized in thatthe third node is a UE.

According to one aspect of the present disclosure, characterized in thatthe third node is a relay node.

The present disclosure provides a first node for wireless communication,comprising:

-   -   a first receiver, receiving a first reference signal; and    -   a first transmitter, transmitting a first signal;    -   herein, a transmitting (Tx) power of the first signal is a first        power value, a first reference power value is used for        determining the first power value, and the first reference power        value is linear with a first pathloss; a first spatial domain        filter is used for transmitting the first signal; the first node        uses the first spatial domain filter to measure the first        reference signal to obtain the first pathloss; a transmitter of        the first reference signal is different from a target receiver        of the first signal.

The present disclosure provides a second node for wirelesscommunication, comprising:

-   -   a first processor, transmitting a first reference signal;    -   herein, a transmitter of a first signal uses a first spatial        domain filter to measure the first reference signal to obtain a        first pathloss; a transmitting (Tx) power of the first signal is        a first power value, a first reference power value is used for        determining the first power value, and the first reference power        value is linear with the first pathloss; the first spatial        domain filter is used for transmitting the first signal; a        target receiver of the first signal is different from the second        node.

The present disclosure provides a third node for wireless communication,comprising:

-   -   a second processor, receiving a first signal;    -   herein, a Tx power of the first signal is a first power value, a        first reference power value is used for determining the first        power value, and the first reference power value is linear with        a first pathloss; a first spatial domain filter is used for        transmitting the first signal; a transmitter of the first signal        uses the first spatial domain filter to measure a first        reference signal to obtain the first pathloss; a transmitter of        the first reference signal is different from the third node.

In one embodiment, the present disclosure has the following advantagescompared with the prior art:

Providing a simple way of realizing beamforming-based transmission inthe V2X system.

By switching between beam sweeping and a specific beam according to anactual received quality, not only gains from beamforming can beoptimized, but the complicated signaling interaction and extra overheadbrought about by it can be avoided.

In one embodiment, the present disclosure has the following advantagescompared with the prior art:

Providing a simple way of realizing beam management and beam-based CSImeasurement/reporting in the V2X system.

Reducing the latency in beam management, thus enhancing the efficiency.

In one embodiment, the present disclosure has the following advantagescompared with the prior art:

When adopting beam-based transmission in sidelink, a more accurateestimation about the interference of sidelink transmission with thecellular network can be made; thus avoiding a reduced sidelinkperformance resulting from overestimated interference of the sidelink tothe cellular network.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present disclosure willbecome more apparent from the detailed description of non-restrictiveembodiments taken in conjunction with the following drawings:

FIG. 1 illustrates a flowchart of a first signal and a second signalaccording to one embodiment of the present disclosure.

FIG. 2 illustrates a schematic diagram of a network architectureaccording to one embodiment of the present disclosure.

FIG. 3 illustrates a schematic diagram of a radio protocol architectureof a user plane and a control plane according to one embodiment of thepresent disclosure.

FIG. 4 illustrates a schematic diagram of a first communication deviceand a second communication device according to one embodiment of thepresent disclosure.

FIG. 5 illustrates a flowchart of a wireless transmission according toone embodiment of the present disclosure.

FIG. 6 illustrates a schematic diagram of a given resource blockaccording to one embodiment of the present disclosure.

FIG. 7 illustrates a schematic diagram of relationship between a thirdresource block and a first resource block according to one embodiment ofthe present disclosure.

FIG. 8 illustrates a schematic diagram of a first information blockaccording to one embodiment of the present disclosure.

FIG. 9 illustrates a schematic diagram of K resource blocks and Kindexes according to one embodiment of the present disclosure.

FIG. 10 illustrates a schematic diagram of a first index, a secondindex, a first reference signal and a second reference signal accordingto one embodiment of the present disclosure.

FIG. 11 illustrates a schematic diagram of a spatial relation between afirst condition set and a second signal according to one embodiment ofthe present disclosure.

FIG. 12 illustrates a schematic diagram of a spatial relation between afirst condition set and a second signal according to one embodiment ofthe present disclosure.

FIG. 13 illustrates a schematic diagram of a first condition setaccording to one embodiment of the present disclosure.

FIG. 14 illustrates a schematic diagram of a first condition setaccording to one embodiment of the present disclosure.

FIG. 15 illustrates a structure block diagram of a processing device ina first node according to one embodiment of the present disclosure.

FIG. 16 illustrates a structure block diagram of a processing device ina second node according to one embodiment of the present disclosure.

FIG. 17 illustrates a flowchart of a first signal set according to oneembodiment of the present disclosure.

FIG. 18 illustrates a flowchart of a wireless transmission according toone embodiment of the present disclosure.

FIG. 19 illustrates a schematic diagram of a first condition set beingused to determine whether a first node is capable of triggering a secondCSI report in a first time window according to one embodiment of thepresent disclosure.

FIG. 20 illustrates a schematic diagram of a first CSI report beingassociated with a first index and a second CSI report being associatedwith a second index according to one embodiment of the presentdisclosure.

FIG. 21 illustrates a schematic diagram of S signals, S first-typesub-signals and S reference signals according to one embodiment of thepresent disclosure.

FIG. 22 illustrates a schematic diagram of S time windows and a firsttime window according to one embodiment of the present disclosure.

FIG. 23 illustrates a schematic diagram of S time windows and a firsttime window according to one embodiment of the present disclosure.

FIG. 24 illustrates a schematic diagram of a first information blockaccording to one embodiment of the present disclosure.

FIG. 25 illustrates a schematic diagram of a first channel quality and asecond channel quality respectively corresponding to a first receivedquality and a second received quality according to one embodiment of thepresent disclosure.

FIG. 26 illustrates a schematic diagram of using a given spatial domainfilter to measure a given reference signal to obtain a given receivedquality according to one embodiment of the present disclosure.

FIG. 27 illustrates a schematic diagram of a first time-frequencyresource block, a target channel quality and an MCS employed by a thirdsignal according to one embodiment of the present disclosure.

FIG. 28 illustrates a schematic diagram of a second information blockaccording to one embodiment of the present disclosure.

FIG. 29 illustrates a structure block diagram of a processing device ina first node according to one embodiment of the present disclosure.

FIG. 30 illustrates a structure block diagram of a processing device ina second node according to one embodiment of the present disclosure.

FIG. 31 illustrates a flowchart of a first reference signaling and afirst signal according to one embodiment of the present disclosure.

FIG. 32 illustrates a flowchart of a wireless transmission according toone embodiment of the present disclosure.

FIG. 33 illustrates a schematic diagram of a first power value accordingto one embodiment of the present disclosure.

FIG. 34 illustrates a schematic diagram of a first reference power valueaccording to one embodiment of the present disclosure.

FIG. 35 illustrates a schematic diagram of a second spatial domainfilter according to one embodiment of the present disclosure.

FIG. 36 illustrates a schematic diagram of a second power valueaccording to one embodiment of the present disclosure.

FIG. 37 illustrates a schematic diagram of a second reference powervalue according to one embodiment of the present disclosure.

FIG. 38 illustrates a schematic diagram of a relation between a firstpathloss and K pathlosses according to one embodiment of the presentdisclosure.

FIG. 39 illustrates a schematic diagram of a relation between a firstspatial domain filter and P spatial domain filters according to oneembodiment of the present disclosure.

FIG. 40 illustrates a schematic diagram of a first power value accordingto one embodiment of the present disclosure.

FIG. 41 illustrates a schematic diagram of a first power value accordingto one embodiment of the present disclosure.

FIG. 42 illustrates a schematic diagram of a first power value accordingto one embodiment of the present disclosure.

FIG. 43 illustrates a schematic diagram of a third reference power valueaccording to one embodiment of the present disclosure.

FIG. 44 illustrates a schematic diagram of a first information blockaccording to one embodiment of the present disclosure.

FIG. 45 illustrates a structure block diagram of a processing device ina first node according to one embodiment of the present disclosure.

FIG. 46 illustrates a structure block diagram of a processing device ina second node according to one embodiment of the present disclosure.

FIG. 47 illustrates a structure block diagram of a processing device ina third node according to one embodiment of the present disclosure.

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the present disclosure is described below infurther details in conjunction with the drawings. It should be notedthat the embodiments of the present disclosure and the characteristicsof the embodiments may be arbitrarily combined if no conflict is caused.

Embodiment 1

Embodiment 1 illustrates a flowchart of a first signal and a secondsignal according to one embodiment of the present disclosure, as shownin FIG. 1 . In 100 illustrated by FIG. 1 , each box represents a step.It should be particularly stressed that the sequence of steps arrangedin the figure does not necessarily represent a chronological order ofthe steps respectively marked by these boxes.

In Embodiment 1, the first node in the present disclosure monitors afirst signal in a first resource block, or, drops monitoring the firstsignal in the first resource block in step 101; and transmits a secondsignal in a second resource block in step 102. Herein, the secondresource block corresponds to a first index, the first index being anon-negative integer; the first resource block is reserved for aHARQ-ACK of a bit block set transmitted in a third resource block;whether a first condition set is fulfilled is used to determine whetherthe first index is used for determining a spatial relation of the secondsignal, and the first condition set is related to whether the firstsignal is conveyed in the first resource block; when the first conditionset is fulfilled, the spatial relation of the second signal is unrelatedto the first index; when the first condition set is not fulfilled, thefirst index is used to determine the spatial relation of the secondsignal.

In one embodiment, the first resource block comprises a time-domainresource and a frequency-domain resource.

In one embodiment, the first resource block comprises a time-domainresource, a frequency-domain resource and a code-domain resource.

In one embodiment, the code-domain resource comprises one or more thanone kind of pseudo-random sequences, low-Peak-to-Average Power Ratio(low-PAPR) sequences, cyclic shift, Orthogonal Cover Code (OCC),orthogonal sequence, frequency-domain orthogonal sequence or time-domainorthogonal sequence.

In one embodiment, the code-domain resource comprises a cyclic shiftpair.

In one embodiment, the first resource block is reserved for a PhysicalSidelink Feedback Channel (PSFCH).

In one embodiment, the first resource block is reserved for the firstsignal.

In one embodiment, the second resource block comprises a time-domainresource and a frequency-domain resource.

In one embodiment, the second resource block comprises a time-domainresource, a frequency-domain resource and a code-domain resource.

In one embodiment, the second resource block is reserved for sidelinktransmission.

In one embodiment, the third resource block comprises a time-domainresource and a frequency-domain resource.

In one embodiment, the third resource block comprises a time-domainresource, a frequency-domain resource and a code-domain resource.

In one embodiment, the third resource block is reserved for sidelinktransmission.

In one embodiment, the first resource block and the second resourceblock are orthogonal in time domain.

In one embodiment, the first resource block is earlier than the secondresource block in time domain.

In one embodiment, a time interval between the second resource block andthe first resource block is no smaller than a second time interval.

In one embodiment, the second time interval is a non-negative integer.

In one embodiment, the second time interval is measured in slots.

In one embodiment, the second time interval is measured in multicarriersymbols.

In one embodiment, the second time interval is pre-configured.

In one embodiment, the second time interval is configured by an RRCsignaling.

In one embodiment, the first resource block and the second resourceblock belong to a same serving cell in frequency domain.

In one embodiment, the first resource block and the second resourceblock belong to a same Bandwidth Part (BWP) in frequency domain.

In one embodiment, the second resource block and the third resourceblock are orthogonal in time domain.

In one embodiment, the first resource block and the third resource blockare orthogonal in time domain.

In one embodiment, the third resource block is earlier than the firstresource block in time domain.

In one embodiment, the first resource block and the third resource blockbelong to a same serving cell in frequency domain.

In one embodiment, the first resource block and the third resource blockbelong to a same BWP in frequency domain.

In one embodiment, the first signal comprises a radio signal.

In one embodiment, the first signal comprises a radio frequency (RF)signal.

In one embodiment, the first signal comprises a baseband signal.

In one embodiment, the first signal carries a Hybrid Automatic Repeatrequest-Acknowledgement (HARQ-ACK).

In one embodiment, the first signal carries CSI.

In one embodiment, the first signal is transmitted through Unicast.

In one embodiment, the first signal is transmitted through Groupcast.

In one embodiment, the first signal is transmitted through Broadcast.

In one embodiment, the first signal is transmitted in SideLink.

In one embodiment, the first signal is transmitted via a PC5 interface.

In one embodiment, the monitoring refers to blind decoding, namely,receiving a signal and operating decoding; if the decoding is determinedto be correct according to a Cyclic Redundancy Check (CRC) bit, it isdetermined that the first signal is detected; or if the decoding isdetermined to be incorrect according to the CRC bit, it is determinedthat the first signal is not detected.

In one embodiment, the monitoring refers to reception based on coherentdetection, namely, performing coherent reception and measuring energy ofa signal obtained by the coherent reception; if the energy of the signalobtained is greater than a first given threshold, it is determined thatthe first signal is detected; or if the energy of the signal obtained isno greater than a first given threshold, it is determined that the firstsignal is not detected.

In one embodiment, the monitoring refers to reception based on energydetection, namely, sensing energy of radio signals and averaging toacquire a received energy; if the received energy is greater than asecond given threshold, it is determined that the first signal isdetected; or if the received energy is no greater than a second giventhreshold, it is determined that the first signal is not detected.

In one embodiment, the phrase of monitoring a first signal includes ameaning that the first node determines whether the first signal is to betransmitted according to CRC.

In one embodiment, the phrase of monitoring a first signal includes ameaning that the first node is uncertain about whether the first signalis to be transmitted before determining whether decoding is correctaccording to CRC.

In one embodiment, the phrase of monitoring a first signal includes ameaning that the first node determines whether the first signal is to betransmitted according to coherent detection.

In one embodiment, the phrase of monitoring a first signal includes ameaning that the first node is uncertain about whether the first signalis to be transmitted before coherent detection.

In one embodiment, the phrase of monitoring a first signal includes ameaning that the first node determines whether the first signal is to betransmitted according to energy detection.

In one embodiment, the phrase of monitoring a first signal includes ameaning that the first node is uncertain about whether the first signalis to be transmitted before energy detection.

In one embodiment, the second signal comprises a radio signal.

In one embodiment, the second signal comprises a radio frequency (RF)signal.

In one embodiment, the second signal comprises a baseband signal.

In one embodiment, the second signal carries a Transport Block (TB).

In one embodiment, the second signal carries a Code Block (CB).

In one embodiment, the second signal carries a Code Block Group (CBG).

In one embodiment, the second signal comprises Sidelink ControlInformation (SCI).

In one embodiment, the second signal does not comprise SCI.

In one embodiment, the second signal is transmitted through Unicast.

In one embodiment, the second signal is transmitted through Groupcast.

In one embodiment, the second signal is transmitted through Broadcast.

In one embodiment, the second signal is transmitted in SideLink.

In one embodiment, the second signal is transmitted via a PC5 interface.

In one embodiment, the second signal comprises a second sub-signal and athird sub-signal, the second sub-signal carrying scheduling informationof the third sub-signal; the scheduling information comprises one ormore than one of a time-domain resource, a frequency-domain resource, aModulation and Coding Scheme (MCS), a DeModulation Reference Signals(DMRS) port, a HARQ process number, a Redundancy Version (RV) or a NewData Indicator (NDI).

In one subembodiment, the second sub-signal comprises one or more fieldsin SCI.

In one subembodiment, the second sub-signal comprises one or more fieldsin 1st stage SCI.

In one subembodiment, the second sub-signal comprises one or more fieldsin 2nd stage SCI.

In one subembodiment, the second sub-signal is transmitted on a PSCCH.

In one subembodiment, some part of the second sub-signal is transmittedon a PSCCH, while the other part of the second sub-signal is transmittedon a Physical Sidelink Shared Channel (PSSCH).

In one subembodiment, the third sub-signal is transmitted on a PSSCH.

In one embodiment, the HARQ-ACK comprises an ACK.

In one embodiment, the HARQ-ACK comprises a Negative ACK (NACK).

In one embodiment, the first signal indicates whether a bit block settransmitted in the third resource block is correctly received.

In one embodiment, the bit block set comprises one or more than one bitblock, and any bit block comprised by the bit block set is one of aTransport Block (TB), a Code Block (CB) or a Code Block Group (CBG).

In one embodiment, the phrase that the second resource block correspondsto a first index means that when the first condition set is unfulfilled,the first index is used for determining a spatial domain relation of thesecond signal.

In one embodiment, the first index is used for identifying a referencesignal resource.

In one embodiment, the first index is used for identifying a referencesignal resource set.

In one embodiment, the first index is used for identifying aTransmission Configuration Indicator (TCI) state.

In one embodiment, the first index is used for identifying a TCI fieldcodepoint corresponding to a reference signal.

In one embodiment, the first index is used for identifying a COntrolREsource SET (CORESET) Pool index.

In one embodiment, the first index is used for identifying a CORESET.

In one embodiment, the first index is used for identifying a searchspace set.

In one embodiment, the first index is used for identifying atime-frequency resource pool.

In one embodiment, the first index is used for identifying an antennapanel.

In one embodiment, the first index is used for identifying an antennagroup, which comprises at least one antenna.

In one embodiment, the spatial relation comprises a TCI state.

In one embodiment, the spatial relation comprises a Quasi-Co-Located(QCL) assumption.

In one embodiment, the spatial relation comprises a QCL parameter.

In one embodiment, the spatial relation comprises a QCL relation.

In one embodiment, the spatial relation comprises spatial settings.

In one embodiment, the spatial relation comprises a Spatial Relation.

In one embodiment, the spatial relation comprises a spatial domainfilter.

In one embodiment, the spatial relation comprises a spatial domaintransmission filter.

In one embodiment, the spatial relation comprises a spatial domainreceive filter.

In one embodiment, the spatial relation comprises a Spatial Txparameter.

In one embodiment, the spatial relation comprises a Spatial Rxparameter.

In one embodiment, the spatial relation comprises large-scaleproperties.

In one embodiment, the large-scale properties comprise one or more thanone of delay spread, Doppler spread, Doppler shift, average delay orSpatial Rx parameter.

In one embodiment, in instances where the first condition set isunfulfilled, a spatial relation of the second signal is unrelated to thefirst index; in instances where the first condition set is fulfilled,the first index is used for determining a spatial relation of the secondsignal.

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architectureaccording to one embodiment of the present disclosure, as shown in FIG.2 .

FIG. 2 is a diagram illustrating a network architecture 200 of Long-TermEvolution (LTE), and Long-Term Evolution Advanced (LTE-A) and future 5Gsystems. The 5G NR or LTE network architecture 200 may be called a 5GSystem (5GS)/Evolved Packet System (EPS) 200. The 5GS/EPS 200 maycomprise one or more UEs 201, aUE241 in sidelink communication withUE(s) 201, an NG-RAN 202, a 5G-CoreNetwork/Evolved Packet Core (5GC/EPC)210, a Home Subscriber Server (HSS)/Unified Data Management (UDM) 220and an Internet Service 230. The 5GS/EPS 200 may be interconnected withother access networks. For simple description, the entities/interfacesare not shown. As shown in FIG. 2 , the 5GS/EPS 200 provides packetswitching services. Those skilled in the art will find it easy tounderstand that various concepts presented throughout the presentdisclosure can be extended to networks providing circuit switchingservices. The NG-RAN 202 comprises a New Radio (NR) node B (gNB) 203 andother gNBs 204. The gNB 203 provides UE 201-oriented user plane andcontrol plane protocol terminations. The gNB 203 may be connected toother gNBs 204 via an Xn interface (for example, backhaul). The gNB 203may be called a base station, a base transceiver station, a radio basestation, a radio transceiver, a transceiver function, a Base Service Set(BSS), an Extended Service Set (ESS), a Transmitter Receiver Point (TRP)or some other applicable terms. The gNB 203 provides an access point ofthe 5GC/EPC 210 for the UE 201. Examples of UE 201 include cellularphones, smart phones, Session Initiation Protocol (SIP) phones, laptopcomputers, Personal Digital Assistant (PDA), Satellite Radios, GlobalPositioning System (GPS), multimedia devices, video devices, digitalaudio players (for example, MP3 players), cameras, games consoles,unmanned aerial vehicles, air vehicles, narrow-band physical networkequipment, machine-type communication equipment, land vehicles,automobiles, wearables, or any other devices having similar functions.Those skilled in the art also can call the UE 201 a mobile station, asubscriber station, a mobile unit, a subscriber unit, a wireless unit, aremote unit, a mobile device, a wireless device, a radio communicationdevice, a remote device, a mobile subscriber station, an accessterminal, a mobile terminal, a wireless terminal, a remote terminal, ahandset, a user proxy, a mobile client, a client, automobile, vehicle orsome other appropriate terms. The gNB 203 is connected with the 5GC/EPC210 via an S1/NG interface. The 5GC/EPC 210 comprises a MobilityManagement Entity (MME)/Authentication Management Field (AMF)/SessionManagement Function (SMF) 211, other MMEs//AMFs/SMFs 214, a ServiceGateway (S-GW)/User Plane Function (UPF) 212 and a Packet Date NetworkGateway (P-GW)/UPF 213. The MME/AMF/SMF 211 is a control node forprocessing a signaling between the UE 201 and the 5GC/EPC 210.Generally, the MME/AMF/SMF 211 provides bearer and connectionmanagement. All user Internet Protocol (IP) packets are transmittedthrough the S-GW/UPF 212; the S-GW/UPF 212 is connected to the P-GW/UPF213. The P-GW 213 provides UE IP address allocation and other functions.The P-GW/UPF 213 is connected to the Internet Service 230. The InternetService 230 comprises operator-compatible IP services, specificallyincluding Internet, Intranet, IP Multimedia Subsystem (IMS) and PacketSwitching Services.

In one embodiment, the first node in the present disclosure comprisesthe UE 201.

In one embodiment, the second node in the present disclosure comprisesthe UE 241.

In one embodiment, the first node in the present disclosure comprisesthe UE 241.

In one embodiment, the second node in the present disclosure comprisesthe UE 201.

In one embodiment, a radio link between the UE201 and the gNB203 is acellular link.

In one embodiment, a radio link between the UE201 and the UE 241 is asidelink.

In one embodiment, a transmitter of the first signal in the presentdisclosure includes the UE 241.

In one embodiment, a receiver of the first signal in the presentdisclosure includes the UE 201.

In one embodiment, a transmitter of the first signal in the presentdisclosure includes the UE 201.

In one embodiment, a receiver of the first signal in the presentdisclosure includes the UE 241.

In one embodiment, a transmitter of the second signal in the presentdisclosure includes the UE 201.

In one embodiment, a receiver of the second signal in the presentdisclosure includes the UE 241.

In one embodiment, a transmitter of the second signal in the presentdisclosure includes the UE 241.

In one embodiment, a receiver of the second signal in the presentdisclosure includes the UE 201.

In one embodiment, a transmitter of the first signal set in the presentdisclosure includes the UE 201.

In one embodiment, a receiver of the first signal set in the presentdisclosure includes the UE 241.

In one embodiment, a transmitter of the first signal set in the presentdisclosure includes the UE 241.

In one embodiment, a receiver of the first signal set in the presentdisclosure includes the UE 201.

In one embodiment, the second node in the present disclosure includesthe gNB203.

In one embodiment, the third node in the present disclosure includes theUE241.

In one embodiment, a transmitter of the first reference signal in thepresent disclosure includes the gNB203.

In one embodiment, a receiver of the first reference signal in thepresent disclosure includes the UE201.

Embodiment 3

Embodiment 3 illustrates a schematic diagram of an example of a radioprotocol architecture of a user plane and a control plane according tothe present disclosure, as shown in FIG. 3 .

Embodiment 3 illustrates a schematic diagram of a radio protocolarchitecture of a user plane and a control plane according to thepresent disclosure, as shown in FIG. 3 . FIG. 3 is a schematic diagramillustrating an embodiment of a radio protocol architecture of a userplane 350 and a control plane 300. In FIG. 3 , the radio protocolarchitecture for a control plane 300 between a first communication node(UE, gNB or, RSU in V2X) and a second communication node (gNB, UE, orRSU in V2X), or between two UEs is represented by three layers, whichare a layer 1, a layer 2 and a layer 3, respectively. The layer 1 (L1)is the lowest layer which performs signal processing functions ofvarious PHY layers. The L1 is called PHY 301 in the present disclosure.The layer 2 (L2) 305 is above the PHY 301, and is in charge of the linkbetween the first communication node and the second communication node,or between two UEs via the PHY 301. The L2 305 comprises a Medium AccessControl (MAC) sublayer 302, a Radio Link Control (RLC) sublayer 303 anda Packet Data Convergence Protocol (PDCP) sublayer 304. All the threesublayers terminate at the second communication nodes of the networkside. The PDCP sublayer 304 provides multiplexing among variable radiobearers and logical channels. The PDCP sublayer 304 provides security byencrypting a packet and provides support for handover of a firstcommunication node between second communication nodes. The RLC sublayer303 provides segmentation and reassembling of a higher-layer packet,retransmission of a lost packet, and reordering of a packet so as tocompensate the disordered receiving caused by Hybrid Automatic RepeatreQuest (HARQ). The MAC sublayer 302 provides multiplexing between alogical channel and a transport channel. The MAC sublayer 302 is alsoresponsible for allocating between first communication nodes variousradio resources (i.e., resource block) in a cell. The MAC sublayer 302is also in charge of HARQ operation. In the control plane 300, The RRCsublayer 306 in the L3 layer is responsible for acquiring radioresources (i.e., radio bearer) and configuring the lower layer using anRRC signaling between the second communication node and the firstcommunication node. The radio protocol architecture in the user plane350 comprises the L1 layer and the L2 layer. In the user plane 350, theradio protocol architecture used for the first communication node andthe second communication node in a PHY layer 351, a PDCP sublayer 354 ofthe L2 layer 355, an RLC sublayer 353 of the L2 layer 355 and a MACsublayer 352 of the L2 layer 355 is almost the same as the radioprotocol architecture used for corresponding layers and sublayers in thecontrol plane 300, but the PDCP sublayer 354 also provides headercompression used for higher-layer packet to reduce radio transmissionoverhead. The L2 layer 355 in the user plane 350 also comprises aService Data Adaptation Protocol (SDAP) sublayer 356, which is in chargeof the mapping between QoS streams and a Data Radio Bearer (DRB), so asto support diversified traffics. Although not described in FIG. 3 , thefirst communication node may comprise several higher layers above the L2355, such as a network layer (i.e., IP layer) terminated at a P-GW 213of the network side and an application layer terminated at the otherside of the connection (i.e., a peer UE, a server, etc.).

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the first node in the present disclosure.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the second node in the present disclosure.

In one embodiment, the first signal is generated by the PHY301 or thePHY351.

In one embodiment, the second signal is generated by the PHY301 or thePHY351.

In one embodiment, the third signal is generated by the PHY301 or thePHY351.

In one embodiment, the first information block is generated by thePHY301 or the PHY351.

In one embodiment, the first information block is generated by the MACsublayer 302 or the MAC sublayer 352.

In one embodiment, the first signal set is generated by the PHY301 orthe PHY351.

In one embodiment, the first information block is generated by thePHY301 or the PHY351.

In one embodiment, the second information block is generated by the RRCsublayer 306.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the third node in the present disclosure.

In one embodiment, the first reference signal is generated by the PHY301or the PHY351.

In one embodiment, the first signal is generated by the PHY301 or thePHY351.

In one embodiment, the K first-type reference signals are generated bythe PHY301 or the PHY351.

In one embodiment, the first information block is generated by the RRCsublayer 306.

Embodiment 4

Embodiment 4 illustrates a schematic diagram of a first communicationdevice and a second communication device according to the presentdisclosure, as shown in FIG. 4 . FIG. 4 is a block diagram of a firstcommunication device 410 and a second communication device 450 incommunication with each other in an access network.

The first communication device 410 comprises a controller/processor 475,a memory 476, a receiving processor 470, a transmitting processor 416, amulti-antenna receiving processor 472, a multi-antenna transmittingprocessor 471, a transmitter/receiver 418 and an antenna 420.

The second communication device 450 comprises a controller/processor459, a memory 460, a data source 467, a transmitting processor 468, areceiving processor 456, a multi-antenna transmitting processor 457, amulti-antenna receiving processor 458, a transmitter/receiver 454 and anantenna 452.

In a transmission from the first communication device 410 to the secondcommunication device 450, at the first communication device 410, ahigher layer packet from a core network is provided to thecontroller/processor 475. The controller/processor 475 implements thefunctionality of the L2 layer. In DL, the controller/processor 475provides header compression, encryption, packet segmentation andreordering, and multiplexing between a logical channel and a transportchannel, and radio resource allocation of the second communicationdevice 450 based on various priorities. The controller/processor 475 isalso in charge of HARQ operation, a retransmission of a lost packet anda signaling to the second communication device 450. The transmittingprocessor 416 and the multi-antenna transmitting processor 471 performvarious signal processing functions used for the L1 layer (i.e., PHY).The transmitting processor 416 performs coding and interleaving so as toensure a Forward Error Correction (FEC) at the second communicationdevice 450 side and the mapping to signal clusters corresponding to eachmodulation scheme (i.e., BPSK, QPSK, M-PSK, and M-QAM, etc.). Themulti-antenna transmitting processor 471 performs digital spatialprecoding, which includes precoding based on codebook and precodingbased on non-codebook, and beamforming processing on encoded andmodulated signals to generate one or more parallel streams. Thetransmitting processor 416 then maps each parallel stream into asubcarrier. The mapped symbols are multiplexed with a reference signal(i.e., pilot frequency) in time domain and/or frequency domain, and thenthey are assembled through Inverse Fast Fourier Transform (IFFT) togenerate a physical channel carrying time-domain multicarrier symbolstreams. After that the multi-antenna transmitting processor 471performs transmission analog precoding/beamforming on the time-domainmulticarrier symbol streams. Each transmitter 418 converts a basebandmulticarrier symbol stream provided by the multi-antenna transmittingprocessor 471 into a radio frequency (RF) stream, which is laterprovided to different antennas 420.

In a transmission from the first communication device 410 to the secondcommunication device 450, at the second communication device 450, eachreceiver 454 receives a signal via a corresponding antenna 452. Eachreceiver 454 recovers information modulated to the RF carrier, andconverts the radio frequency stream into a baseband multicarrier symbolstream to be provided to the receiving processor 456. The receivingprocessor 456 and the multi-antenna receiving processor 458 performsignal processing functions of the L1 layer. The multi-antenna receivingprocessor 458 performs reception analog precoding/beamforming on abaseband multicarrier symbol stream provided by the receiver 454. Thereceiving processor 456 converts the processed baseband multicarriersymbol stream from time domain into frequency domain using FFT. Infrequency domain, a physical layer data signal and a reference signalare de-multiplexed by the receiving processor 456, wherein the referencesignal is used for channel estimation, while the data signal issubjected to multi-antenna detection in the multi-antenna receivingprocessor 458 to recover any second communication device 450-targetedparallel stream. Symbols on each parallel stream are demodulated andrecovered in the receiving processor 456 to generate a soft decision.Then the receiving processor 456 decodes and de-interleaves the softdecision to recover the higher-layer data and control signal transmittedby the first communication device 410 on the physical channel. Next, thehigher-layer data and control signal are provided to thecontroller/processor 459. The controller/processor 459 performsfunctions of the L2 layer. The controller/processor 459 can beassociated with a memory 460 that stores program code and data. Thememory 460 can be called a computer readable medium. In DL, thecontroller/processor 459 provides demultiplexing between a transportchannel and a logical channel, packet reassembling, decrypting, headerdecompression and control signal processing so as to recover ahigher-layer packet from the core network. The higher-layer packet islater provided to all protocol layers above the L2 layer, or variouscontrol signals can be provided to the L3 layer for processing. Thecontroller/processor 459 is also responsible for using ACK/NACKprotocols in error detection as a way to support HARQ operation.

In a transmission from the second communication device 450 to the firstcommunication device 410, at the second communication device 450, thedata source 467 is configured to provide a higher-layer packet to thecontroller/processor 459. The data source 467 represents all protocollayers above the L2 layer. Similar to a transmitting function of thefirst communication device 410 described in DL, the controller/processor459 performs header compression, encryption, packet segmentation andreordering, and multiplexing between a logical channel and a transportchannel based on radio resource allocation of the first communicationdevice 410 so as to provide the L2 layer functions used for the userplane and the control plane. The controller/processor 459 is alsoresponsible for HARQ operation, a retransmission of a lost packet, and asignaling to the first communication device 410. The transmittingprocessor 468 performs modulation and mapping, as well as channelcoding, and the multi-antenna transmitting processor 457 performsdigital multi-antenna spatial precoding, including precoding based oncodebook and precoding based on non-codebook, and beamforming. Thetransmitting processor 468 then modulates generated parallel streamsinto multicarrier/single-carrier symbol streams. The modulated symbolstreams, after being subjected to analog precoding/beamforming in themulti-antenna transmitting processor 457, are provided from thetransmitter 454 to each antenna 452. Each transmitter 454 first convertsa baseband symbol stream provided by the multi-antenna transmittingprocessor 457 into a radio frequency symbol stream, and then providesthe radio frequency symbol stream to the antenna 452.

In a transmission from the second communication device 450 to the firstcommunication device 410, the function of the first communication device410 is similar to the receiving function of the second communicationdevice 450 described in the transmission from the first communicationdevice 410 to the second communication device 450. Each receiver 418receives a radio frequency signal via a corresponding antenna 420,converts the received radio frequency signal into a baseband signal, andprovides the baseband signal to the multi-antenna receiving processor472 and the receiving processor 470. The receiving processor 470 and themulti-antenna receiving processor 472 jointly provide functions of theL1 layer. The controller/processor 475 provides functions of the L2layer. The controller/processor 475 can be associated with the memory476 that stores program code and data. The memory 476 can be called acomputer readable medium. The controller/processor 475 providesde-multiplexing between a transport channel and a logical channel,packet reassembling, decrypting, header decompression, control signalprocessing so as to recover a higher-layer packet from the secondcommunication device 450. The higher-layer packet coming from thecontroller/processor 475 may be provided to the core network. Thecontroller/processor 475 is also responsible for using ACK/NACKprotocols in error detection as a way to support HARQ operation.

In one embodiment, the second communication device 450 comprises atleast one processor and at least one memory, the at least one memorycomprises computer program codes; the at least one memory and thecomputer program codes are configured to be used in collaboration withthe at least one processor, the second communication device 450 at leastmonitors the first signal in the first resource block, or, dropsmonitoring the first signal in the first resource block; and transmitsthe second signal in the second resource block. Herein, the secondresource block corresponds to a first index, the first index being anon-negative integer; the first resource block is reserved for aHARQ-ACK of a bit block set transmitted in a third resource block;whether a first condition set is fulfilled is used to determine whetherthe first index is used for determining a spatial relation of the secondsignal, and the first condition set is related to whether the firstsignal is conveyed in the first resource block; when the first conditionset is fulfilled, the spatial relation of the second signal is unrelatedto the first index; when the first condition set is not fulfilled, thefirst index is used to determine the spatial relation of the secondsignal.

In one embodiment, the second communication device 450 comprises amemory that stores computer readable instruction program, the computerreadable instruction program generates actions when executed by at leastone processor, which include: monitoring the first signal in the firstresource block, or, dropping monitoring the first signal in the firstresource block; and transmitting the second signal in the secondresource block. Herein, the second resource block corresponds to a firstindex, the first index being a non-negative integer; the first resourceblock is reserved for a HARQ-ACK of a bit block set transmitted in athird resource block; whether a first condition set is fulfilled is usedto determine whether the first index is used for determining a spatialrelation of the second signal, and the first condition set is related towhether the first signal is conveyed in the first resource block; whenthe first condition set is fulfilled, the spatial relation of the secondsignal is unrelated to the first index; when the first condition set isnot fulfilled, the first index is used to determine the spatial relationof the second signal.

In one embodiment, the first communication device 410 comprises at leastone processor and at least one memory, the at least one memory comprisescomputer program codes; the at least one memory and the computer programcodes are configured to be used in collaboration with the at least oneprocessor. The first communication device 410 at least transmits thefirst signal in the first resource block, or, drops transmission of thefirst signal in the first resource block; and receives a second signalin a second resource block. Herein, the second resource blockcorresponds to a first index, the first index being a non-negativeinteger; the first resource block is reserved for a HARQ-ACK of abitblock set transmitted in a third resource block; whether a firstcondition set is fulfilled is used to determine whether the first indexis used for determining a spatial relation of the second signal, and thefirst condition set is related to whether the first signal is conveyedin the first resource block; when the first condition set is fulfilled,the spatial relation of the second signal is unrelated to the firstindex; when the first condition set is not fulfilled, the first index isused to determine the spatial relation of the second signal.

In one embodiment, the first communication device 410 comprises a memorythat stores computer readable instruction program, the computer readableinstruction program generates actions when executed by at least oneprocessor, which include: transmitting the first signal in the firstresource block, or, dropping transmission of any signal in the firstresource block; and receiving a second signal in a second resourceblock. Herein, the second resource block corresponds to a first index,the first index being a non-negative integer; the first resource blockis reserved for a HARQ-ACK of a bit block set transmitted in a thirdresource block; whether a first condition set is fulfilled is used todetermine whether the first index is used for determining a spatialrelation of the second signal, and the first condition set is related towhether the first signal is conveyed in the first resource block; whenthe first condition set is fulfilled, the spatial relation of the secondsignal is unrelated to the first index; when the first condition set isnot fulfilled, the first index is used to determine the spatial relationof the second signal.

In one embodiment, the first node in the present disclosure includes thesecond communication device 450.

In one embodiment, the second node in the present disclosure includesthe first communication device 410.

In one embodiment, at least one of the antenna 452, the receiver 454,the receiving processor 456, the multi-antenna receiving processor 458or the controller/processor 459 is used for monitoring the first signalin the first resource block; at least one of the antenna 420, thetransmitter 418, the transmitting processor 416, the multi-antennatransmitting processor 471 or the controller/processor 475 is used fortransmitting the first signal in the first resource block.

In one embodiment, at least one of the antenna 420, the receiver 418,the receiving processor 470, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 is used for receiving thesecond signal in the second resource block; at least one of the antenna452, the transmitter 454, the transmitting processor 468, themulti-antenna transmitting processor 457, the controller/processor 459or the memory 460 is used for transmitting the second signal in thesecond resource block.

In one embodiment, at least one of the antenna 420, the receiver 418,the receiving processor 470, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 is used for receiving thefirst information block; at least one of the antenna 452, thetransmitter 454, the transmitting processor 468, the multi-antennatransmitting processor 457, the controller/processor 459 or the memory460 is used for transmitting the first information block.

In one embodiment, at least one of the antenna 420, the receiver 418,the receiving processor 470, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 is used for blinddetecting the third signal in the third resource block; at least one ofthe antenna 452, the transmitter 454, the transmitting processor 468,the multi-antenna transmitting processor 457, the controller/processor459 or the memory 460 is used for transmitting the third signal in thethird resource block.

In one embodiment, the second communication device 450 comprises atleast one processor and at least one memory, the at least one memorycomprises computer program codes; the at least one memory and thecomputer program codes are configured to be used in collaboration withthe at least one processor, the second communication device 450 at leasttransmits the first signal set. Time-domain resource(s) occupied by oneor more signals comprised in the first signal set is(are) used fordetermining a first time window; the first signal set comprises a firstsignal, the first signal comprising a first sub-signal and a firstreference signal; the first sub-signal comprises a first field, and thefirst field of the first sub-signal is used for triggering a first CSIreport; a first condition set is used for determining whether the secondcommunication device 450 is capable of triggering a second CSI report inthe first time window; when the first condition set is fulfilled, thesecond communication device 450 is unable to trigger the second CSIreport in the first time window; when the first condition set is notfulfilled, the second communication device 450 is able to trigger thesecond CSI report in the first time window; the first condition setcomprises at least one of a first condition or a second condition; thefirst condition comprises that a number of signals comprised in thefirst signal set is no less than a first threshold; the second conditioncomprises that a first index is equal to a second index, the first CSIreport is associated with the first index, and the second CSI report isassociated with the second index.

In one embodiment, the second communication device 450 comprises amemory that stores computer readable instruction program, the computerreadable instruction program generates actions when executed by at leastone processor, which include: transmitting the first signal set.Time-domain resource(s) occupied by one or more signals comprised in thefirst signal set is(are) used for determining a first time window; thefirst signal set comprises a first signal, the first signal comprising afirst sub-signal and a first reference signal; the first sub-signalcomprises a first field, and the first field of the first sub-signal isused for triggering a first CSI report; a first condition set is usedfor determining whether the second communication device 450 is capableof triggering a second CSI report in the first time window; when thefirst condition set is fulfilled, the second communication device 450 isunable to trigger the second CSI report in the first time window; whenthe first condition set is not fulfilled, the second communicationdevice 450 is able to trigger the second CSI report in the first timewindow; the first condition set comprises at least one of a firstcondition or a second condition; the first condition comprises that anumber of signals comprised in the first signal set is no less than afirst threshold; the second condition comprises that a first index isequal to a second index, the first CSI report is associated with thefirst index, and the second CSI report is associated with the secondindex.

In one embodiment, the first communication device 410 comprises at leastone processor and at least one memory, the at least one memory comprisescomputer program codes; the at least one memory and the computer programcodes are configured to be used in collaboration with the at least oneprocessor. The first communication device 410 at least receives thefirst signal set. Time-domain resource(s) occupied by one or moresignals comprised in the first signal set is(are) used for determining afirst time window; the first signal set comprises a first signal, thefirst signal comprising a first sub-signal and a first reference signal;the first sub-signal comprises a first field, and the first field of thefirst sub-signal is used for triggering a first CSI report; a firstcondition set is used for determining whether a transmitter of the firstsignal set is capable of triggering a second CSI report in the firsttime window; when the first condition set is fulfilled, the transmitterof the first signal set is unable to trigger the second CSI report inthe first time window; when the first condition set is not fulfilled,the transmitter of the first signal set is able to trigger the secondCSI report in the first time window; the first condition set comprisesat least one of a first condition or a second condition; the firstcondition comprises that a number of signals comprised in the firstsignal set is no less than a first threshold; the second conditioncomprises that a first index is equal to a second index, the first CSIreport is associated with the first index, and the second CSI report isassociated with the second index.

In one embodiment, the first communication device 410 comprises a memorythat stores computer readable instruction program, the computer readableinstruction program generates actions when executed by at least oneprocessor, which include: receiving the first signal set. Time-domainresource(s) occupied by one or more signals comprised in the firstsignal set is(are) used for determining a first time window; the firstsignal set comprises a first signal, the first signal comprising a firstsub-signal and a first reference signal; the first sub-signal comprisesa first field, and the first field of the first sub-signal is used fortriggering a first CSI report; a first condition set is used fordetermining whether a transmitter of the first signal set is capable oftriggering a second CSI report in the first time window; when the firstcondition set is fulfilled, the transmitter of the first signal set isunable to trigger the second CSI report in the first time window; whenthe first condition set is not fulfilled, the transmitter of the firstsignal set is able to trigger the second CSI report in the first timewindow; the first condition set comprises at least one of a firstcondition or a second condition; the first condition comprises that anumber of signals comprised in the first signal set is no less than afirst threshold; the second condition comprises that a first index isequal to a second index, the first CSI report is associated with thefirst index, and the second CSI report is associated with the secondindex.

In one embodiment, at least one of the antenna 420, the receiver 418,the receiving processor 470, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 is used for receiving thefirst signal set; at least one of the antenna 452, the transmitter 454,the transmitting processor 468, the multi-antenna transmitting processor457, the controller/processor 459 or the memory 460 is used fortransmitting the first signal set.

In one embodiment, at least one of the antenna 452, the receiver 454,the receiving processor 456, the multi-antenna receiving processor 458or the controller/processor 459 is used for receiving the firstinformation block; at least one of the antenna 420, the transmitter 418,the transmitting processor 416, the multi-antenna transmitting processor471 or the controller/processor 475 is used for transmitting the firstinformation block.

In one embodiment, at least one of the antenna 420, the receiver 418,the receiving processor 470, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 is used for receiving thethird signal in the first time-frequency resource block; at least one ofthe antenna 452, the transmitter 454, the transmitting processor 468,the multi-antenna transmitting processor 457, the controller/processor459 or the memory 460 is used for transmitting the third signal in thefirst time-frequency resource block.

In one embodiment, at least one of the antenna 420, the receiver 418,the receiving processor 470, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 is used for receiving thesecond information block; at least one of the antenna 452, thetransmitter 454, the transmitting processor 468, the multi-antennatransmitting processor 457, the controller/processor 459 or the memory460 is used for transmitting the second information block.

In one embodiment, the second communication device 450 comprises atleast one processor and at least one memory, the at least one memorycomprises computer program codes; the at least one memory and thecomputer program codes are configured to be used in collaboration withthe at least one processor, the second communication device 450 at leastreceives the first reference signal; and transmits the first signal. Atransmitting (Tx) power of the first signal is a first power value, afirst reference power value is used for determining the first powervalue, and the first reference power value is linear with a firstpathloss; a first spatial domain filter is used for transmitting thefirst signal; the second communication device 450 uses the first spatialdomain filter to measure the first reference signal to obtain the firstpathloss; a transmitter of the first reference signal is different froma target receiver of the first signal.

In one embodiment, the second communication device 450 comprises amemory that stores computer readable instruction program, the computerreadable instruction program generates actions when executed by at leastone processor, which include: receiving the first reference signal; andtransmitting the first signal. A transmitting (Tx) power of the firstsignal is a first power value, a first reference power value is used fordetermining the first power value, and the first reference power valueis linear with a first pathloss; a first spatial domain filter is usedfor transmitting the first signal; the second communication device 450uses the first spatial domain filter to measure the first referencesignal to obtain the first pathloss; a transmitter of the firstreference signal is different from a target receiver of the firstsignal.

In one embodiment, the first communication device 410 comprises at leastone processor and at least one memory, the at least one memory comprisescomputer program codes; the at least one memory and the computer programcodes are configured to be used in collaboration with the at least oneprocessor. The first communication device 410 at least transmits thefirst reference signal. A transmitter of a first signal uses a firstspatial domain filter to measure the first reference signal to obtain afirst pathloss; a transmitting (Tx) power of the first signal is a firstpower value, a first reference power value is used for determining thefirst power value, and the first reference power value is linear withthe first pathloss; the first spatial domain filter is used fortransmitting the first signal; a target receiver of the first signal isdifferent from the first communication device 410.

In one embodiment, the first communication device 410 comprises a memorythat stores computer readable instruction program, the computer readableinstruction program generates an action when executed by at least oneprocessor, which includes: transmitting the first reference signal. Atransmitter of a first signal uses a first spatial domain filter tomeasure the first reference signal to obtain a first pathloss; atransmitting (Tx) power of the first signal is a first power value, afirst reference power value is used for determining the first powervalue, and the first reference power value is linear with the firstpathloss; the first spatial domain filter is used for transmitting thefirst signal; a target receiver of the first signal is different fromthe first communication device 410.

In one embodiment, the first communication device 410 comprises at leastone processor and at least one memory, the at least one memory comprisescomputer program codes; the at least one memory and the computer programcodes are configured to be used in collaboration with the at least oneprocessor. The first communication device 410 at least receives thefirst signal. A Tx power of the first signal is a first power value, afirst reference power value is used for determining the first powervalue, and the first reference power value is linear with a firstpathloss; a first spatial domain filter is used for transmitting thefirst signal; a transmitter of the first signal uses the first spatialdomain filter to measure a first reference signal to obtain the firstpathloss; a transmitter of the first reference signal is different fromthe first communication device 410.

In one embodiment, the first communication device 410 comprises a memorythat stores computer readable instruction program, the computer readableinstruction program generates an action when executed by at least oneprocessor, which includes: receiving the first signal. A Tx power of thefirst signal is a first power value, a first reference power value isused for determining the first power value, and the first referencepower value is linear with a first pathloss; a first spatial domainfilter is used for transmitting the first signal; a transmitter of thefirst signal uses the first spatial domain filter to measure a firstreference signal to obtain the first pathloss; a transmitter of thefirst reference signal is different from the first communication device410.

In one embodiment, the third node in the present disclosure includes thefirst communication device 410.

In one embodiment, at least one of the antenna 452, the receiver 454,the receiving processor 456, the multi-antenna receiving processor 458or the controller/processor 459 is used for receiving the firstreference signal; at least one of the antenna 420, the transmitter 418,the transmitting processor 416, the multi-antenna transmitting processor471 or the controller/processor 475 is used for transmitting the firstreference signal.

In one embodiment, at least one of the antenna 420, the receiver 418,the receiving processor 470, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 is used for receiving thefirst signal; at least one of the antenna 452, the transmitter 454, thetransmitting processor 468, the multi-antenna transmitting processor457, the controller/processor 459 or the memory 460 is used fortransmitting the first signal.

In one embodiment, at least one of the antenna 420, the receiver 418,the receiving processor 470, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 is used for receiving thesecond signal; at least one of the antenna 452, the transmitter 454, thetransmitting processor 468, the multi-antenna transmitting processor457, the controller/processor 459 or the memory 460 is used fortransmitting the second signal.

In one embodiment, at least one of the antenna 452, the receiver 454,the receiving processor 456, the multi-antenna receiving processor 458or the controller/processor 459 is used for receiving the K first-typereference signals; at least one of the antenna 420, the transmitter 418,the transmitting processor 416, the multi-antenna transmitting processor471 or the controller/processor 475 is used for transmitting the Kfirst-type reference signals.

In one embodiment, at least one of the antenna 452, the receiver 454,the receiving processor 456, the multi-antenna receiving processor 458or the controller/processor 459 is used for receiving the third signal;at least one of the antenna 420, the transmitter 418, the transmittingprocessor 416, the multi-antenna transmitting processor 471 or thecontroller/processor 475 is used for transmitting the third signal.

In one embodiment, at least one of the antenna 452, the receiver 454,the receiving processor 456, the multi-antenna receiving processor 458,the controller/processor 459 or the memory 460 is used for receiving thefirst information block; at least one of the antenna 420, thetransmitter 418, the transmitting processor 416, the multi-antennatransmitting processor 471, the controller/processor 475 or the memory476 is used for transmitting the first information block.

Embodiment 5

Embodiment 5 illustrates a flowchart of a wireless transmissionaccording to one embodiment of the present disclosure, as shown in FIG.5 . In FIG. 5 , a second node U1 and a first node U2 are communicationnodes that transmit via an air interface. As illustrated in FIG. 5 ,steps marked by boxes F51-F55 are optional, respectively.

The second node U1 receives a first information block in step S5101;blind detects a third signal in a third resource block in step S5102;transmits a first signal in a first resource block in step S5103; andreceives a second signal in a second resource block in step S511.

The first node U2 transmits a first information block in step S5201;transmits a third signal in a third resource block in step S5202;monitors a first signal in a first resource block in step S5203; andtransmits a second signal in a second resource block in step S521.

In Embodiment 5, the second resource block corresponds to a first index,the first index being a non-negative integer; the first resource blockis reserved for a HARQ-ACK of a bit block set transmitted in a thirdresource block; whether a first condition set is fulfilled is used todetermine whether the first index is used for determining a spatialrelation of the second signal, and the first condition set is related towhether the first signal is conveyed in the first resource block; whenthe first condition set is fulfilled, the spatial relation of the secondsignal is unrelated to the first index; when the first condition set isnot fulfilled, the first index is used to determine the spatial relationof the second signal.

In one embodiment, the first node U2 is the first node in the presentdisclosure.

In one embodiment, the second node U1 is the second node in the presentdisclosure.

In one embodiment, an air interface between the second node U1 and thefirst node U2 is a PC5 interface.

In one embodiment, an air interface between the second node U1 and thefirst node U2 includes sidelink.

In one embodiment, an air interface between the second node U1 and thefirst node U2 includes a wireless interface between a relay node and aUE.

In one embodiment, an air interface between the second node U1 and thefirst node U2 includes a wireless interface between UEs.

In one embodiment, the first node is a terminal.

In one embodiment, the first node is an automobile.

In one embodiment, the first node is a vehicle.

In one embodiment, the first node is a Road Side Unit (RSU).

In one embodiment, the first node is a terminal.

In one embodiment, the first node is an automobile.

In one embodiment, the first node is a vehicle.

In one embodiment, the first node is an RSU.

In one embodiment, whether a first condition set is fulfilled is used bythe first node U2 to determine whether the first index is used fordetermining a spatial relation of the second signal.

In one embodiment, whether a first condition set is fulfilled is used bythe second node U1 to determine whether the first index is used fordetermining a spatial relation of the second signal.

In one embodiment, if the first node considers that the first conditionset is fulfilled, it is deemed that a spatial relation of the secondsignal is unrelated to the first index; if the first node considers thatthe first condition set is not fulfilled, it is deemed that the firstindex is used by the first node for determining the spatial relation ofthe second signal.

In one embodiment, if the second node considers that the first conditionset is fulfilled, it is deemed that a spatial relation of the secondsignal is unrelated to the first index; if the second node considersthat the first condition set is not fulfilled, it is deemed that thefirst index is used by the second node for determining the spatialrelation of the second signal.

In one embodiment, if the first node monitors the first signal in thefirst resource block and detects the first signal in the first resourceblock, it is deemed that the first signal is conveyed in the firstresource block; if the first node monitors the first signal in the firstresource block and does not detect the first signal in the firstresource block, it is deemed that the first signal is not conveyed inthe first resource block.

In one embodiment, if the first node drops monitoring the first signalin the first resource block, it is deemed that the first signal isconveyed in the first resource block.

In one embodiment, if the first node drops monitoring the first signalin the first resource block, it is deemed that the first signal is notconveyed in the first resource block.

In one embodiment, if the second node transmits the first signal in afirst resource block, it is deemed that the first signal is conveyed inthe first resource block; if the second node drops transmitting thefirst signal in a first resource block, it is deemed that the firstsignal is not conveyed in the first resource block.

In one embodiment, the step marked by the box F55 in FIG. 5 exists; thefirst node monitors the first signal in the first resource block.

In one embodiment, the step marked by the box F55 in FIG. 5 does notexist; the first node drops transmitting the first signal in the firstresource block.

In one embodiment, the first node autonomously determines whether tomonitor the first signal in the first resource block.

In one embodiment, if the first node drops transmitting signals in thethird resource block, it drops monitoring the first signal in the firstresource block.

In one embodiment, if the first node transmits a signal in a first timewindow and the first time window overlaps with the first resource blockin time domain, the first node drops monitoring the first signal in thefirst resource block.

In one embodiment, if the first node transmits the third signal in thethird resource block and does not transmit signals in a first timewindow, the first node monitors the first signal in the first resourceblock; a time-domain resource occupied by the first resource block isthe first time window.

In one embodiment, the step marked by the box F54 in FIG. 5 exists; thesecond node transmits the first signal in the first resource block.

In one embodiment, the step marked by the box F54 in FIG. 5 does notexist; the second node drops transmitting signals in the first resourcebloc.

In one embodiment, the second node autonomously determines whether totransmit the first signal in the first resource block.

In one embodiment, if the fact that the second node does not receive abit block set in the third resource block, of which a target receiverincludes the second node, the second node drops transmitting signals inthe first resource block.

In one embodiment, if the second node does not receive the third signalin the third resource block, it drops transmitting signals in the firstresource block.

In one embodiment, if the second node receives a signal in a first timewindow, and the first time window overlaps with the first resource blockin time domain, the second node drops transmitting signals in the firstresource block.

In one embodiment, if the second node transmits a fourth signal set in afirst time window, and the first time window overlaps with the firstresource block in time domain, and a total transmitting power of thefourth signal set is no smaller than a first power threshold, the secondnode drops transmitting signals in the first resource block.

In one subembodiment, any signal in the fourth signal set is of apriority higher than the first signal.

In one embodiment, the phrase of dropping transmission of any signal ina first resource block means dropping transmitting any radio signal inthe first resource block.

In one embodiment, the phrase of dropping transmission of any signal ina first resource block means dropping transmitting any radio frequencysignal in the first resource block.

In one embodiment, the phrase of dropping transmission of any signal ina first resource block means dropping transmitting any baseband signalin the first resource block.

In one embodiment, the phrase of dropping transmission of any signal ina first resource block means dropping transmitting the first signal inthe first resource block.

In one embodiment, the first signal is transmitted on a sidelinkphysical layer feedback channel (i.e., a sidelink channel only capableof carrying physical layer HARQ feedback).

In one embodiment, the first signal is transmitted on a PSFCH.

In one embodiment, the second signal is transmitted on a sidelinkphysical layer control channel (i.e., a sidelink channel only capable ofcarrying physical layer signaling).

In one embodiment, the second signal is transmitted on a PhysicalSidelink Control Channel (PSCCH).

In one embodiment, the second signal is transmitted on a sidelinkphysical layer data channel (i.e., a sidelink channel only capable ofcarrying physical layer data).

In one embodiment, the second signal is transmitted on a PSSCH.

In one embodiment, some part of the second signal is transmitted on aPSCCH, while the other part of the second signal is transmitted on aPSSCH.

In one embodiment, steps marked by the box F51 in FIG. 5 exist; thesecond resource block and the third resource block are respectivelyresource blocks of K resource blocks, K being a positive integer greaterthan 1; the first information block is used by the second node U1 todetermine the K resource blocks and K indexes, the K indexesrespectively corresponding to the K resource blocks; any index of the Kindexes is a non-negative integer; and the first index is one of the Kindexes that corresponds to the second resource block.

In one embodiment, the first information block is transmitted on aPSCCH.

In one embodiment, the first information block is transmitted on aPSSCH.

In one embodiment, the step marked by the box F52 in FIG. 5 exists; thefirst node transmits the third signal in the third resource block; thethird signal carries a first bit block set, while the first signalcarries a HARQ-ACK for the first bit block set.

In one embodiment, the step marked by the box F52 in FIG. 5 does notexist; the first node drops transmitting signals in the third resourceblock.

In one embodiment, the step marked by the box F53 in FIG. 5 exists; thesecond node blind detects the third signal in the third resource block.

In one embodiment, the step marked by the box F53 in FIG. 5 does notexist; the first node drops blind detecting the third signal in thethird resource block.

In one embodiment, the first node autonomously determines whether todrop transmission of any signal in the third resource block.

In one embodiment, if a higher layer of the first node does not delivera TB transmitted in the third resource block, the first node dropstransmission of any signal in the third resource block.

In one embodiment, the third signal comprises a radio signal.

In one embodiment, the third signal comprises a radio frequency (RF)signal.

In one embodiment, the third signal comprises a baseband signal.

In one embodiment, the third signal occupies all Resource Elements (REs)in the third resource block.

In one embodiment, a target receiver of the third signal is the same asa target receiver of the second signal.

In one embodiment, a target receiver of the third signal includes thesecond node.

In one embodiment, the third signal comprises a fourth sub-signal, thefourth sub-signal carrying information of all or part of fields in apiece of SCI; the fourth sub-signal comprises a first field, the firstfield comprising information of a Destination ID field in the SCI; thefirst field of the fourth sub-signal indicates a first node set, thefirst node set comprising the second node.

In one embodiment, the third signal comprises SCI.

In one embodiment, the third signal comprises a reference signal.

In one embodiment, the third signal comprises DMRS.

In one embodiment, the third signal comprises a Channel StateInformation-Reference Signal (CSI-RS).

In one embodiment, the third signal comprises a Phase-Tracking ReferenceSignal (PTRS).

In one embodiment, the phrase of dropping transmission of any signal inthe third resource block means dropping transmitting any radio signal inthe third resource block.

In one embodiment, the phrase of dropping transmission of any signal inthe third resource block means dropping transmitting any radio frequencysignal in the third resource block.

In one embodiment, the phrase of dropping transmission of any signal inthe third resource block means dropping transmitting any baseband signalin the third resource block.

In one embodiment, the phrase of dropping transmission of any signal inthe third resource block means dropping transmitting a third signal inthe third resource block.

In one embodiment, the blind detection refers to receiving a signal andoperating decoding; if the decoding is determined to be correctaccording to a CRC bit, it is determined that the third signal isreceived; or if the decoding is determined to be incorrect according toa CRC bit, it is determined that the third signal is not received.

In one subembodiment, if the decoding is determined as correct accordingto a CRC bit of SCI, it is determined that the third signal is received;otherwise, it is determined that the third signal is not received.

In one subembodiment, if the decoding is determined as correct accordingto a CRC bit of 1st stage SCI, it is determined that the third signal isreceived; otherwise, it is determined that the third signal is notreceived.

In one embodiment, the blind detection refers to performing coherentreception and measuring energy of a signal obtained by the coherentreception; if the energy of the signal obtained by the coherentreception is greater than a third given threshold, it is determined thatthe third signal is received; otherwise, it is determined that the thirdsignal is not received.

In one embodiment, the phrase of blind detecting a third signal meansthat the second node determines whether the third signal is to betransmitted according to CRC.

In one embodiment, the phrase of blind detecting a third signal meansthat the second node is uncertain about whether the third signal is tobe transmitted before determining whether decoding is correct accordingto CRC.

In one embodiment, the phrase of blind detecting a third signal meansthat the second node determines whether the third signal is to betransmitted according to coherent detection.

In one embodiment, the phrase of blind detecting a third signal meansthat the second node is uncertain about whether the third signal is tobe transmitted before coherent detection.

In one embodiment, the step marked by the box F53 in FIG. 5 exists; thesecond node receives the third signal in the third resource block.

In one embodiment, the step marked by the box F53 in FIG. 5 does notexist; the second node does not receive the third signal in the thirdresource block.

In one embodiment, if the second node transmits a signal in a secondtime window, the second node drops blind detecting signals in the thirdresource block; the second time window overlaps with the third resourceblock in time domain.

In one embodiment, the first bit block set comprises one or more thanone bit block, and any bit block comprised by the first bit block set isone of a TB, a CB or a CBG.

In one embodiment, the first bit block set comprises only one bit block.

In one embodiment, the first bit block set comprises multiple bitblocks.

In one embodiment, any bit block comprised by the first bit blockcomprises more than one sequentially arranged bits.

In one embodiment, the phrase that the third signal carries a first bitblock set means that the first signal comprises an output by bits in thefirst bit block set sequentially through some of or all procedures ofCRC Attachment, Code Block Segmentation, Code Block CRC Attachment,Channel Coding, and Rate Matching, Data and control multiplexing,Scrambling, Modulation, Layer Mapping, transform precoding, Precoding,and Mapping to Virtual Resource Blocks, Mapping from Virtual to PhysicalResource Blocks, and Multicarrier Symbol Generation, as well asModulation and Upconversion.

In one embodiment, the phrase that the third signal carries a first bitblock set means that the first bit block set is used for generating thethird signal.

In one embodiment, the first signal carries a HARQ-ACK of each bit blockcomprised by the first bit block set.

In one embodiment, the first signal indicates whether each bit block inthe first bit block set is correctly received.

In one embodiment, the first signal indicates that each bit block in thefirst bit block set is correctly received, or the first signal indicatesthat there is one bit block in the first bit block set not beingcorrectly received.

In one embodiment, the first signal indicates that there is one bitblock in the first bit block set not being correctly received.

In one embodiment, the third signal is transmitted on a PSCCH.

In one embodiment, the third signal is transmitted on a PSSCH.

In one embodiment, some part of the third signal is transmitted on aPSCCH, while the other part of the third signal is transmitted on aPSSCH.

Embodiment 6

Embodiment 6 illustrates a schematic diagram of a given resource blockaccording to one embodiment of the present disclosure; as shown in FIG.6 . In Embodiment 6, the given resource block is the first resourceblock or the second resource block, or the third resource block, or anyof the K resource blocks.

In one embodiment, the given resource block is the first resource block.

In one embodiment, the given resource block is the second resourceblock.

In one embodiment, the given resource block is the third resource block.

In one embodiment, the given resource block is any of the K resourceblocks.

In one embodiment, the given resource block comprises at least one RE intime-frequency domain.

In one embodiment, an RE occupies a multicarrier symbol in time domainand a subcarrier in frequency domain.

In one embodiment, the multicarrier symbol is an Orthogonal FrequencyDivision Multiplexing (OFDM) symbol.

In one embodiment, the multicarrier symbol is a Single Carrier-FrequencyDivision Multiple Access (SC-FDMA) symbol.

In one embodiment, the multicarrier symbol is a Discrete FourierTransform Spread OFDM (DFT-S-OFDM) symbol.

In one embodiment, the given resource block comprises more than onePhysical Resource block (PRB) in frequency domain.

In one embodiment, the given resource block comprises one PRB infrequency domain.

In one embodiment, the given resource block comprises a positive integernumber of sub-channel(s) in frequency domain.

In one embodiment, the given resource block comprises a positive integernumber of consecutive sub-channels in frequency domain.

In one embodiment, the given resource block comprises a positive integernumber of multicarrier symbol(s) in time domain.

In one embodiment, the given resource block comprises a positive integernumber of consecutive multicarrier symbols in time domain.

In one embodiment, the given resource block comprises a positive integernumber of non-consecutive multicarrier symbols in time domain.

In one embodiment, the given resource block comprises a positive integernumber of slot(s) in time domain.

In one embodiment, the given resource block comprises a positive integernumber of sub-frame(s) in time domain.

Embodiment 7

Embodiment 7 illustrates a schematic diagram of relationship between athird resource block and a first resource block according to oneembodiment of the present disclosure, as shown in FIG. 7 . In Embodiment7, the third resource block is used for determining the first resourceblock.

In one embodiment, a time-frequency resource occupied by the thirdresource block is used for determining the first resource block.

In one embodiment, a time-domain resource occupied by the third resourceblock is used for determining a time-domain resource occupied by thefirst resource block.

In one embodiment, a time interval between a time unit to which thethird resource block belongs and a time unit to which the first resourceblock belongs is no smaller than a first time interval.

In one embodiment, the first resource block belongs to a first time unitin time domain, and the third resource block belongs to a second timeunit in time domain; the first time unit is an earliest time unitcomprising a time-domain resource reserved for a PSFCH, which is laterthan the second time unit, and between which and the second time unitthere is a time interval being no smaller than a first time interval.

In one embodiment, the first time interval is a non-negative integer.

In one embodiment, the first time interval is measured in slots.

In one embodiment, the first time interval is measured in multicarriersymbols.

In one embodiment, the first time interval is measured in the time unit.

In one embodiment, the first time interval is preconfigured.

In one embodiment, the first time interval is configured by an RRCsignaling.

In one embodiment, the time unit is a slot.

In one embodiment, the time unit is a multicarrier symbol.

In one embodiment, the time unit comprises a positive integer number ofconsecutive multicarrier symbols.

In one embodiment, the number of multicarrier symbols comprised by thetime unit is RRC-configured.

In one embodiment, a frequency-domain resource occupied by the thirdresource block is used for determining a frequency-domain resourceoccupied by the first resource block.

In one embodiment, a frequency-domain resource occupied by the thirdresource block is used for determining a frequency-domain resource and acode-domain resource occupied by the first resource block.

In one embodiment, a time-frequency resource occupied by the thirdresource block is used for determining a frequency-domain resourceoccupied by the first resource block.

In one embodiment, a time-frequency resource occupied by the thirdresource block is used for determining a frequency-domain resource and acode-domain resource occupied by the first resource block.

In one embodiment, the third signal comprises a fourth sub-signal, thefourth sub-signal carrying information of all or part of fields in apiece of SCI; the fourth sub-signal comprises a second field, the secondfield comprising information of a Source ID field in the SCI; the secondfield of the fourth sub-signal indicates a first IDentity (ID), thefirst ID being used to determine the first resource block.

In one embodiment, the first ID is used for determining a code-domainresource occupied by the first resource block.

In one embodiment, the first ID is used for determining afrequency-domain resource and a code-domain resource occupied by thefirst resource block.

In one embodiment, the first resource block is a candidate resourceblock of Q1 candidate resource blocks, Q1 being a positive integergreater than 1; a time-frequency resource occupied by the third resourceblock is used for determining the Q1 candidate resource blocks.

In one embodiment, the first ID is used for determining the firstresource block out of the Q1 candidate resource blocks.

In one embodiment, a second time unit is a time unit to which the thirdresource block belongs, and a first sub-channel set comprises one ormore than one sub-channel occupied by the third resource block; thesecond time unit and the first sub-channel set are used for determiningthe Q1 candidate resource blocks.

In one embodiment, the first sub-channel set only comprises a startingsub-channel occupied by the third resource block.

In one embodiment, the first sub-channel set only comprises asub-channel occupied by the third resource block.

In one embodiment, the first sub-channel set comprises multiplesub-channels occupied by the third resource block.

In one embodiment, a given sub-channel is any sub-channel in the firstsub-channel set, a pair of the second time unit—the given sub-channel isone of P1 candidate pairs, P1 being a positive integer greater than 1;the P1 candidate pairs respectively correspond to P1 candidate resourceblock sets; the Q1 candidate resource blocks are composed of candidateresource block sets determined by all sub-channels comprised in thefirst sub-channel set.

In one subembodiment, the P1 candidate resource block sets aredetermined in a way specified by section 16.3 of 3GPP TS38.213.

In one subembodiment, the correspondence relationship between the P1candidate pairs and the P1 candidate resource block sets is determinedin a way specified by section 16.3 of 3GPP TS38.213.

In one embodiment, any one of the Q1 candidate resource blocks isreserved for HARQ-ACK.

In one embodiment, any one of the Q1 candidate resource blocks isreserved for a PSFCH.

In one embodiment, any one of the Q1 candidate resource blocks comprisesa time-frequency resource and a code-domain resource.

In one embodiment, all of the Q1 candidate resource blocks belong to asame time unit in time domain.

In one embodiment, there are two candidate resource blocks among the Q1candidate resource blocks that occupy a same PRB in frequency domain andcorrespond to different cyclic shifts.

In one embodiment, there are two candidate resource blocks among the Q1candidate resource blocks that respectively occupy two mutuallyorthogonal PRBs.

Embodiment 8

Embodiment 8 illustrates a schematic diagram of a first informationblock according to one embodiment of the present disclosure; as shown inFIG. 8 . In Embodiment 8, the first information block is used fordetermining the K resource blocks and the K indexes.

In one embodiment, the first information block is carried by a physicallayer signaling.

In one embodiment, the first information block is carried by a dynamicsignaling.

In one embodiment, the first information block is carried by an L1signaling.

In one embodiment, the first information block comprises Downlinkcontrol information (DCI).

In one embodiment, the first information block comprises SCI.

In one embodiment, the first information block comprises information ofone or more fields in a piece of SCI.

In one embodiment, the first information block comprises information ofone or more fields in 1st stage SCI.

In one embodiment, the first information block comprises information ofone or more fields in 2nd stage SCI.

In one embodiment, the first information block is carried by the thirdsignal.

In one embodiment, the first information block is carried by an RRCsignaling.

In one embodiment, the first information block is transmitted throughUnicast.

In one embodiment, the first information block is transmitted throughGroupcast.

In one embodiment, the first information block is transmitted throughBroadcast.

In one embodiment, the first information block is transmitted inSideLink.

In one embodiment, the first information block is transmitted via a PC5interface.

In one embodiment, the first information block indicates the K resourceblocks and the K indexes.

In one embodiment, the first information block comprises a first bitfield, the first bit field indicating the K resource blocks.

In one embodiment, the first information block comprises a second bitfield, the second bit field indicating the K indexes.

In one embodiment, a time-domain resource occupied by the firstinformation block is used for determining the K resource blocks.

In one embodiment, a time-frequency resource occupied by the firstinformation block is used for determining the K indexes.

In one embodiment, the first information block indicates that the Kresource blocks are reserved by the first node.

In one embodiment, the first information block indicates that the Kresource blocks are reserved for the first node.

In one embodiment, the first information block comprises a third field,and the third field in the first information block is used fordetermining the K resource blocks; the third field comprises informationof one or more fields in a piece of SCI.

In one embodiment, the third field comprises information of a Frequencyresource assignment field.

In one embodiment, the third field comprises information of a Timeresource assignment field.

In one embodiment, the third field comprises information of a Resourcereservation period field.

In one embodiment, the third field in the first information blockindicates a time interval between a time unit to which an earliest oneof the K resource blocks belongs and a time unit to which the firstinformation block belongs.

In one embodiment, the third field in the first information blockindicates a time interval between any two of the K resource blocks thatare adjacent in time domain.

In one embodiment, the third field in the first information blockindicates a frequency-domain resource occupied by any one of the Kresource blocks.

Embodiment 9

Embodiment 9 illustrates a schematic diagram of K resource blocks and Kindexes according to one embodiment of the present disclosure; as shownin FIG. 9 . In Embodiment 9, the K indexes respectively correspond tothe K resource blocks. In FIG. 9 , the K indexes and indexes of the Kresource blocks are #0, . . . and #(K−1), respectively.

In one embodiment, any of the K resource blocks comprises a time-domainresource and a frequency-domain resource.

In one embodiment, any of the K resource blocks comprises a time-domainresource, a frequency-domain resource and a code-domain resource.

In one embodiment, any of the K resource blocks is reserved for sidelinktransmission.

In one embodiment, any two of the K resource blocks are mutuallyorthogonal in time domain.

In one embodiment, of the K resource blocks there are two resourceblocks occupying a same frequency-domain resource.

In one embodiment, of the K resource blocks there are two resourceblocks occupying different frequency-domain resources.

In one embodiment, frequency-domain resources occupied by any two of theK resource blocks are of an equal size.

In one embodiment, time-domain resources occupied by any two of the Kresource blocks are of an equal size.

In one embodiment, of the K resource blocks there are two resourceblocks occupying different sizes of time-domain resources.

In one embodiment, the K resource blocks belong to a same serving cellin frequency domain.

In one embodiment, the K resource blocks belong to a same BWP infrequency domain.

In one embodiment, of the K resource blocks there isn't any resourceblock located between the second resource block and the third resourceblock in time domain.

In one embodiment, of the K resource blocks there isn't any resourceblock located between the second resource block and the first resourceblock in time domain.

In one embodiment, the second resource block is an earliest resourceblock later than the first resource block among the K resource blocks,between which and the first resource block there is a time intervalbeing no smaller than a second time interval.

In one embodiment, the second resource block is one of K1 resourceblocks, and the K1 resource blocks are composed of part of the Kresource blocks, K1 being a positive integer greater than 1; for anygiven resource block of the K1 resource blocks, there is a resourceblock of the K resource blocks of which a corresponding PSFCH slot isearlier than the given resource block in time domain.

In one subembodiment, there is a resource block of the K resource blocksof which a corresponding PSFCH slot is earlier than the given resourceblock in time domain and between which and the given resource blockthere is a time interval being no smaller than a second time interval.

In one embodiment, the third resource block is one of S resource blocks,S being a positive integer greater than 1; any resource block of the Sresource blocks is one of the K resource blocks, and indexes for the Sresource blocks are all equal to a value of the second index; S signalsrespectively carry HARQ-ACKs for bit block sets respectively transmittedin the S resource blocks; the first condition set comprises: the Ssignals are conveyed and each indicates that a bit block set transmittedin a corresponding resource block is correctly received.

In one subembodiment, the value of S is configured by an RRC signaling.

In one subembodiment, the value of S is pre-defined.

In one subembodiment, of the K resource blocks there isn't a resourceblock being located between any two of the S resource blocks in timedomain, with a corresponding index equal to a value of the second index.

In one embodiment, K is equal to 2, and the K resource blocks consist ofthe second resource block and the third resource block.

In one embodiment, K is greater than 2.

In one embodiment, of the K indexes there are two indexes with unequalvalues.

In one embodiment, of the K indexes there are two indexes with equalvalues.

In one embodiment, any of the K indexes is used for identifying areference signal resource.

In one embodiment, any of the K indexes is used for identifying areference signal resource set.

In one embodiment, any of the K indexes is used for identifying a TCIstate.

In one embodiment, any of the K indexes is used for identifying a TCIfield codepoint corresponding to a reference signal.

In one embodiment, any of the K indexes is used for identifying aCORESET pool index.

In one embodiment, the second index is one of the K indexes thatcorresponds to the third resource block.

Embodiment 10

Embodiment 10 illustrates a schematic diagram of a first index beingused to determine a first reference signal and a second index being usedto determine a second reference signal according to one embodiment ofthe present disclosure; as shown in FIG. 10 .

In one embodiment, the first index is unequal to the second index.

In one embodiment, the first index is equal to the second index.

In one embodiment, the first reference signal and the second referencesignal respectively comprise SL reference signals.

In one embodiment, the first reference signal comprises a CSI-RS.

In one embodiment, the first reference signal comprises a DMRS.

In one embodiment, the first reference signal comprises a SoundingReference Signal (SRS).

In one embodiment, the first reference signal comprises an SLSynchronization Signal (SS)/Physical Sidelink Broadcast CHannel (PSBCH)block.

In one embodiment, the second reference signal comprises a CSI-RS.

In one embodiment, the second reference signal comprises a DMRS.

In one embodiment, the second reference signal comprises a SoundingReference Signal (SRS).

In one embodiment, the second reference signal comprises an SL SS block.

In one embodiment, the first reference signal and the second referencesignal cannot be assumed to be Quasi Co-Located (QCL).

In one embodiment, the first reference signal and the second referencesignal cannot be assumed to be QCL, corresponding to QCL-TypeD.

In one embodiment, the first reference signal is the second referencesignal.

In one embodiment, the first index indicates the first reference signal.

In one embodiment, the second index indicates the second referencesignal.

In one embodiment, the first index is used for identifying the firstreference signal.

In one embodiment, the second index is used for identifying the secondreference signal.

In one embodiment, the first index comprises an identifier of the firstreference signal.

In one embodiment, the second index comprises an identifier of thesecond reference signal.

In one embodiment, the first index is a TCI field codepointcorresponding to the first reference signal.

In one embodiment, the second index is a TCI field codepointcorresponding to the second reference signal.

In one embodiment, the first index comprises an identifier of areference signal resource corresponding to the first reference signal.

In one embodiment, the second index comprises an identifier of areference signal resource corresponding to the second reference signal.

In one embodiment, the first index comprises an identifier of areference signal resource set to which the first reference signalbelongs.

In one embodiment, the second index comprises an identifier of areference signal resource set to which the second reference signalbelongs.

In one embodiment, the second index is a non-negative integer.

In one embodiment, the phrase that the first index is used to determinethe spatial relation of the second signal includes a meaning that thefirst index is used for determining the first reference signal, and thefirst reference signal is used for determining the spatial relation ofthe second signal.

In one embodiment, the phrase that the spatial relation of the secondsignal is unrelated to the first index includes a meaning that thesecond reference signal is used for determining the spatial relation ofthe second signal.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat the second signal is QCL with the given reference signal.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat the second signal is QCL with the given reference signal,corresponding to QCL-TypeD.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat the first node transmits the second signal and the given referencesignal using a same spatial domain filter.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat the first node transmits the second signal and receives the givenreference signal using a same spatial domain filter.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat a target receiver of the second signal receives the second signaland the given reference signal using a same spatial domain filter.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat a target receiver of the second signal receives the second signaland transmits the given reference signal using a same spatial domainfilter.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat large-scale properties of a channel that the second signal goesthrough can be inferred from large-scale properties of a channel thatthe given reference signal goes through.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat the second node receives the second signal and the given referencesignal using a same spatial domain filter.

In one embodiment, the phrase that a given reference signal is used fordetermining the spatial relation of the second signal includes a meaningthat the second node receives the second signal and transmits the givenreference signal using a same spatial domain filter.

In one embodiment, the given reference signal is either the firstreference signal or the second reference signal.

In one embodiment, the given reference signal is the first referencesignal.

In one embodiment, the given reference signal is the second referencesignal.

Embodiment 11

Embodiment 11 illustrates a schematic diagram of a spatial relationbetween afirst condition set and a second signal according to oneembodiment of the present disclosure; as shown in FIG. 11 . InEmbodiment 11, when the first condition set is not fulfilled, the firstreference signal is used for determining a spatial relation of thesecond signal; when the first condition set is fulfilled, the secondreference signal is used for determining the spatial relation of thesecond signal.

In one embodiment, if the first node considers that the first conditionset is not fulfilled, the first reference signal is used by the firstnode for determining a spatial relation of the second signal; if thefirst node considers that the first condition set is fulfilled, thesecond reference signal is used by the first node for determining aspatial relation of the second signal.

In one embodiment, if the second node considers that the first conditionset is not fulfilled, the first reference signal is used by the secondnode for determining a spatial relation of the second signal; if thesecond node considers that the first condition set is fulfilled, thesecond reference signal is used by the second node for determining aspatial relation of the second signal.

In one embodiment, the second reference signal is used for determining aspatial relation of the third signal.

Embodiment 12

Embodiment 12 illustrates a schematic diagram of a spatial relationbetween a first condition set and a second signal according to oneembodiment of the present disclosure; as shown in FIG. 12 . InEmbodiment 12, if the first condition set is fulfilled and the thirdsignal is conveyed in the third resource block, the second signal andthe third signal are QCL; if the first condition set is not fulfilledand the third signal is conveyed in the third resource block, whetherthe first index is equal to the second index is used to determinewhether the second signal and the third signal are QCL.

In one embodiment, if the first condition set is fulfilled and the thirdsignal is conveyed in the third resource block, the second signal andthe third signal are QCL, corresponding to QCL-TypeD.

In one embodiment, when the first condition set is not fulfilled and thethird signal is conveyed in the third resource block, if the first indexis equal to the second index, the second signal and the third signal areQCL; if the first index is unequal to the second index, the secondsignal and the third signal are not QCL.

In one embodiment, in a case where the first condition set is notfulfilled and the third signal is conveyed in the third resource block,if the first index is equal to the second index, the second signal andthe third signal are QCL, corresponding to QCL-TypeD; if the first indexis unequal to the second index, the second signal and the third signalare not QCL, let alone corresponding to QCL-TypeD.

In one embodiment, if the third signal is not conveyed in the thirdresource block, the first condition set is not fulfilled.

In one embodiment, if the first node considers that the first conditionset is fulfilled and the third signal is conveyed in the third resourceblock, it is deemed that the second signal and the third signal are QCL;if the first node considers that the first condition set is notfulfilled and the third signal is conveyed in the third resource block,whether the first index is equal to the second index is used by thefirst node for determining whether the second signal and the thirdsignal are QCL.

In one embodiment, if the second node considers that the first conditionset is fulfilled and the third signal is conveyed in the third resourceblock, it is assumed that the second signal and the third signal areQCL; if the second node considers that the first condition set is notfulfilled and the third signal is conveyed in the third resource block,whether the first index is equal to the second index is used by thesecond node for determining whether the second signal and the thirdsignal are QCL.

In one embodiment, in an instance when the second node considers thatthe first condition set is not fulfilled and the third signal is notconveyed in the third resource block, if the first index is equal to thesecond index, the second node receives the second signal and blinddetects the third signal using a same spatial domain filter; if thefirst index is unequal to the second index, the second node receives thesecond signal and blind detects the third signal using different spatialdomain filters.

In one embodiment, if the first node transmits the third signal in thethird resource block, the first node deems that the third signal isconveyed in the third resource block; if the first node dropstransmission of any signal in the third resource block, the first nodedeems that the third signal is not conveyed in the third resource block.

In one embodiment, if the second node receives the third signal in thethird resource block, the second node deems that the third signal isconveyed in the third resource block; if the second node does notreceive the third signal in the third resource block, the second nodedeems that the third signal is not conveyed in the third resource block.

In one embodiment, if the first condition set is not fulfilled and thethird signal is not conveyed in the third resource block, the firstindex is used for determining a spatial relation of the second signal.

In one embodiment, a first spatial domain filter is used by the firstnode for transmitting a radio signal in the third resource block; in aninstance when the first condition set is not fulfilled and the thirdsignal is not conveyed in the third resource block, if the first indexis equal to the second index, the first spatial domain filter is used bythe first node for transmitting the second signal; if the first index isunequal to the second index, the first node uses a spatial domain filterdifferent from the first spatial domain filter to transmit the secondsignal.

In one embodiment, the first index is equal to 0 or 1.

In one embodiment, the second index is equal to 0 or 1.

In one embodiment, any one of the K indexes is equal to 0 or 1.

In one embodiment, the phrase that the first index is used to determinethe spatial relation of the second signal includes a meaning thatwhether the first index is equal to the second index is used todetermine whether the second signal and the third signal are QCL.

In one embodiment, the phrase that the first index is used to determinethe spatial relation of the second signal includes a meaning thatwhether the first index is equal to the second index is used todetermine whether the second signal and the third signal are QCL,corresponding to QCL-TypeD.

In one embodiment, the phrase that the spatial relation of the secondsignal is unrelated to the first index includes a meaning that thesecond signal and the third signal are QCL.

In one embodiment, the phrase that the spatial relation of the secondsignal is unrelated to the first index includes a meaning that thesecond signal and the third signal are QCL, corresponding to QCL-TypeD.

Embodiment 13

Embodiment 13 illustrates a schematic diagram of a first condition setaccording to one embodiment of the present disclosure; as shown in FIG.13 . In Embodiment 13, the first condition set comprises the firstsignal being conveyed in the first resource block and the first signalindicating that a bit block set transmitted in the third resource blockis correctly received.

In one embodiment, the first condition set comprises that the firstsignal indicates that each bit block in a bit block set transmitted inthe third resource block is correctly received.

In one embodiment, the first condition set comprises that the firstsignal indicates that each bit block in the first bit block set iscorrectly received.

In one embodiment, the first condition set comprises that the firstsignal is not conveyed in the first resource block.

In one embodiment, the first condition set comprises that the firstsignal is not conveyed in the first resource block, and a SCI format ofthe fourth sub-signal is SCI format 2-B.

Embodiment 14

Embodiment 14 illustrates a schematic diagram of a first condition setaccording to one embodiment of the present disclosure; as shown in FIG.14 . In Embodiment 14, the first resource block is one of N resourceblocks, and the first signal is one of N signals, the N resource blocksare respectively reserved for the N signals, N being a positive integer;any of the N resource blocks is reserved for a HARQ-ACK for a bitblockset transmitted in the third resource block; a first signal group iscomposed of signals being conveyed in corresponding resource blocksamong the N signals; a first signal sub-group is composed of signalscomprised in the first signal group indicating that a bit block settransmitted in the third resource block is correctly received, and thefirst condition set comprises that a number of signals comprised by thefirst signal sub-group is greater than a first threshold; the firstthreshold is a positive integer.

In one embodiment, the above method in a first node for wirelesscommunications comprises:

-   -   monitoring a given signal in a given resource block, or,        dropping monitoring of the given signal in the given resource        block;    -   herein, the given signal is any of the N signals other than the        first signal, and the given resource block is one of the N        resource blocks being reserved for the given signal.

In one embodiment, for any given signal of the N signals, if the firstnode monitors the given signal in a corresponding resource block anddetects the given signal, the first node deems that the first signalgroup comprises the given signal; if the first node monitors the givensignal in the corresponding resource block and does not detect the givensignal, the first node deems that the first signal group does notcomprise the given signal.

In one embodiment, for any given signal of the N signals, if the firstnode drops monitoring the given signal in a corresponding resourceblock, the first node deems that the first signal group does notcomprise the given signal.

In one embodiment, for any given signal of the N signals, if the firstnode drops monitoring the given signal in a corresponding resourceblock, the first node deems that the first signal group comprises thegiven signal.

In one embodiment, the first signal sub-group is composed of signalscomprised by the first signal group indicating that each bit block in abit block set transmitted in the third resource block is correctlyreceived.

In one embodiment, the first signal group is empty.

In one embodiment, the first signal group only comprises one of the Nsignals.

In one embodiment, the first signal group comprises multiple signals ofthe N signals.

In one embodiment, the first signal sub-group is empty.

In one embodiment, the first signal sub-group only comprises one signalin the first signal group.

In one embodiment, the first signal sub-group comprises multiple signalsin the first signal group.

In one embodiment, the first threshold is a positive integer greaterthan 1.

In one embodiment, the first threshold is equal to N.

In one embodiment, the first threshold is equal to a number of signalscomprised by the first signal group.

In one embodiment, the first threshold is equal to a product of N and afirst coefficient, the first coefficient being a positive real numberless than 1.

In one embodiment, the first coefficient is configured by RRC.

In one embodiment, the first coefficient is pre-defined.

In one embodiment, any two of the N signals correspond to differenttransmitters.

In one embodiment, of the N signals there are two signals correspondingto a same transmitter.

In one embodiment, the third resource block is used for determining theN resource blocks.

In one embodiment, any of the N resource blocks comprises atime-frequency resource and a code-domain resource.

In one embodiment, the N resource blocks belong to a same time unit intime domain.

In one embodiment, the first node set comprises N nodes, and the N nodesrespectively correspond to the N resource blocks.

In one embodiment, identities of the N nodes are respectively used fordetermining the N resource blocks.

In one embodiment, indexes of the N nodes in the first node set arerespectively used for determining the N resource blocks.

In one embodiment, any of the N resource blocks is a candidate resourceblock of the Q1 candidate resource blocks.

In one embodiment, for any given node of the N nodes, the first ID andan identity of the given node are jointly used for determining aresource block corresponding to the given node out of the Q1 candidateresource blocks.

Embodiment 15

Embodiment 15 illustrates a structure block diagram of a processingdevice in a first node according to one embodiment of the presentdisclosure; as shown in FIG. 15 . In FIG. 15 , a processing device 1500in a first node comprises a first receiver 1501 and a first transmitter1502.

In Embodiment 15, the first receiver 1501 monitors a first signal in afirst resource block, or, drops monitoring the first signal in the firstresource block; the first transmitter 1502 transmits a second signal ina second resource block.

In Embodiment 15, the second resource block corresponds to a firstindex, the first index being a non-negative integer; the first resourceblock is reserved for a HARQ-ACK of a bit block set transmitted in athird resource block; whether a first condition set is fulfilled is usedto determine whether the first index is used for determining a spatialrelation of the second signal, and the first condition set is related towhether the first signal is conveyed in the first resource block; whenthe first condition set is fulfilled, the spatial relation of the secondsignal is unrelated to the first index; when the first condition set isnot fulfilled, the first index is used to determine the spatial relationof the second signal.

In one embodiment, the first transmitter 1502 transmits a firstinformation block; herein, the second resource block and the thirdresource block are respectively resource blocks of K resource blocks, Kbeing a positive integer greater than 1; the first information block isused to determine the K resource blocks and K indexes, the K indexesrespectively corresponding to the K resource blocks; any index of the Kindexes is a non-negative integer; and the first index is one of the Kindexes that corresponds to the second resource block.

In one embodiment, the first transmitter 1502 transmits a third signalin the third resource block, or, the first transmitter 1502 dropstransmission of any signal in the third resource block; herein, thethird signal carries a first bit block set, while the first signalcarries a HARQ-ACK for the first bit block set.

In one embodiment, the third resource block corresponds to a secondindex; the first index and the second index are respectively used todetermine a first reference signal and a second reference signal; whenthe first condition set is not fulfilled, the first reference signal isused to determine the spatial relation of the second signal; when thefirst condition set is fulfilled, the second reference signal is used todetermine the spatial relation of the second signal.

In one embodiment, the third resource block corresponds to a secondindex; when the first condition set is fulfilled and the third signal isconveyed in the third resource block, the second signal and the thirdsignal are QCL; when the first condition set is not fulfilled and thethird signal is conveyed in the third resource block, whether the firstindex is equal to the second index is used to determine whether thesecond signal and the third signal are QCL.

In one embodiment, the first condition set comprises the first signalbeing conveyed in the first resource block and the first signalindicating that a bit block set transmitted in the third resource blockis correctly received.

In one embodiment, the first node is a UE.

In one embodiment, the first node is a relay node.

In one embodiment, the first receiver 1501 comprises at least one of theantenna 452, the receiver 454, the receiving processor 456, themulti-antenna receiving processor 458, the controller/processor 459, thememory 460 or the data source 467 in Embodiment 4.

In one embodiment, the first transmitter 1502 comprises at least one ofthe antenna 452, the transmitter 454, the transmitting processor 468,the multi-antenna transmitting processor 457, the controller/processor459, the memory 460 or the data source 467 in Embodiment 4.

Embodiment 16

Embodiment 16 illustrates a structure block diagram of a processingdevice in a second node according to one embodiment of the presentdisclosure; as shown in FIG. 16 . In FIG. 16 , a processing device 1600in a second node comprises a second transmitter 1601 and a secondreceiver 1602.

In Embodiment 16, the second transmitter 1601 transmits a first signalin a first resource block, or drops transmission of any signal in thefirst resource block; the second receiver 1602 receives a second signalin a second resource block.

In Embodiment 16, the second resource block corresponds to a firstindex, the first index being a non-negative integer; the first resourceblock is reserved for a HARQ-ACK of a bit block set transmitted in athird resource block; whether a first condition set is fulfilled is usedto determine whether the first index is used for determining a spatialrelation of the second signal, and the first condition set is related towhether the first signal is conveyed in the first resource block; whenthe first condition set is fulfilled, the spatial relation of the secondsignal is unrelated to the first index; when the first condition set isnot fulfilled, the first index is used to determine the spatial relationof the second signal.

In one embodiment, the second receiver 1602 receives a first informationblock; herein, the second resource block and the third resource blockare respectively resource blocks of K resource blocks, K being apositive integer greater than 1; the first information block is used todetermine the K resource blocks and K indexes, the K indexesrespectively corresponding to the K resource blocks; any index of the Kindexes is a non-negative integer; and the first index is one of the Kindexes that corresponds to the second resource block.

In one embodiment, the second receiver 1602 blind detects a third signalin the third resource block; herein, the third signal carries a firstbit block set, while the first signal carries a HARQ-ACK for the firstbit block set.

In one embodiment, the third resource block corresponds to a secondindex; the first index and the second index are respectively used todetermine a first reference signal and a second reference signal; whenthe first condition set is not fulfilled, the first reference signal isused to determine the spatial relation of the second signal; when thefirst condition set is fulfilled, the second reference signal is used todetermine the spatial relation of the second signal.

In one embodiment, the third resource block corresponds to a secondindex; when the first condition set is fulfilled and the third signal isconveyed in the third resource block, the second signal and the thirdsignal are QCL; when the first condition set is not fulfilled and thethird signal is conveyed in the third resource block, whether the firstindex is equal to the second index is used to determine whether thesecond signal and the third signal are QCL.

In one embodiment, the first condition set comprises the first signalbeing conveyed in the first resource block and the first signalindicating that a bit block set transmitted in the third resource blockis correctly received.

In one embodiment, the second node is a UE.

In one embodiment, the second node is a relay node.

In one embodiment, the second transmitter 1601 comprises at least one ofthe antenna 420, the transmitter 418, the transmitting processor 416,the multi-antenna transmitting processor 471, the controller/processor475 or the memory 476 in Embodiment 4.

In one embodiment, the second receiver 1602 comprises at least one ofthe antenna 420, the receiver 418, the receiving processor 470, themulti-antenna receiving processor 472, the controller/processor 475 orthe memory 476 in Embodiment 4.

Embodiment 17

Embodiment 17 illustrates a flowchart of a first signal set according toone embodiment of the present disclosure; as shown in FIG. 17 . In 1700illustrated by FIG. 17 , each box represents a step.

In Embodiment 17, the first node in the present disclosure transmits afirst signal set in step 1701. Herein, time-domain resource(s) occupiedby one or more signals comprised in the first signal set is(are) usedfor determining a first time window; the first signal set comprises afirst signal, the first signal comprising a first sub-signal and a firstreference signal; the first sub-signal comprises a first field, and thefirst field of the first sub-signal is used for triggering a first CSIreport; a first condition set is used for determining whether the firstnode is capable of triggering a second CSI report in the first timewindow; when the first condition set is fulfilled, the first node isunable to trigger the second CSI report in the first time window; whenthe first condition set is not fulfilled, the first node is able totrigger the second CSI report in the first time window; the firstcondition set comprises at least one of a first condition or a secondcondition; the first condition comprises that a number of signalscomprised in the first signal set is no less than a first threshold; thesecond condition comprises that a first index is equal to a secondindex, the first CSI report is associated with the first index, and thesecond CSI report is associated with the second index.

In one embodiment, the first signal set comprises a positive integernumber of signal(s).

In one embodiment, the first signal set comprises only one signal.

In one embodiment, the first signal set comprises more than one signal.

In one embodiment, the first signal set only comprises the first signal.

In one embodiment, the first signal set comprises at least one signalother than the first signal.

In one embodiment, any signal in the first signal set comprises abaseband signal.

In one embodiment, any signal in the first signal set comprises a radiosignal.

In one embodiment, any signal in the first signal set comprises a radiofrequency (RF) signal.

In one embodiment, the first signal set comprises multiple signals, andany two signals in the first signal set correspond to a target receiver.

In one embodiment, the first signal set comprises multiple signals, andthe first signal is any signal in the first signal set.

In one embodiment, any signal in the first signal set is transmittedthrough Unicast.

In one embodiment, there is a signal in the first signal set beingtransmitted through Unicast.

In one embodiment, there is a signal in the first signal set beingtransmitted through Groupcast.

In one embodiment, any signal in the first signal set is transmitted inSideLink.

In one embodiment, any signal in the first signal set is transmitted viaa PC5 interface.

In one embodiment, all signals in the first signal set are transmittedon a same carrier.

In one embodiment, all signals in the first signal set are transmittedon a same BWP.

In one embodiment, there are two signals in the first signal set beingtransmitted on different carriers.

In one embodiment, there are two signals in the first signal set beingtransmitted on different BWPs.

In one embodiment, the first signal comprises a baseband signal.

In one embodiment, the first signal comprises a radio signal.

In one embodiment, the first signal comprises a radio frequency (RF)signal.

In one embodiment, the first time window is a contiguous duration.

In one embodiment, the first time window comprises a positive integernumber of multicarrier symbol(s).

In one embodiment, the first time window comprises one multicarriersymbols or multiple consecutive multicarrier symbols.

In one embodiment, the first time window comprises a positive integernumber of slot(s).

In one embodiment, the first time window comprises one slot or apositive integer number of consecutive slots.

In one embodiment, the first time window comprises one time unit or apositive integer number of consecutive time units.

In one embodiment, a length of the first time window is configured by ahigher layer parameter.

In one embodiment, a length of the first time window is configured by ahigher layer parameter sl-LatencyBoundCSI-Report.

In one embodiment, a time-domain resource occupied by each signal in thefirst signal set is used for determining the first time window.

In one embodiment, the first signal set only comprises the first signal,and a time-domain resource occupied by the first signal is used fordetermining the first time window.

In one embodiment, a start of the first time window is an end time of atime-domain resource occupied by the first signal.

In one embodiment, a start of the first time window is a start time of atime-domain resource occupied by the first signal.

In one embodiment, a start of the first time window is an end time of aslot occupied by the first signal.

In one embodiment, a start of the first time window is a start time of aslot occupied by the first signal.

In one embodiment, a start of the first time window is an end time of atime unit occupied by the first signal.

In one embodiment, a start of the first time window is a start time of atime unit occupied by the first signal.

In one embodiment, an end of the first time window is an end time of alast slot expected to receive or accomplish the first CSI report.

In one embodiment, the time unit is a slot.

In one embodiment, the time unit is a SideLink (SL) slot.

In one embodiment, the time unit is a multicarrier symbol.

In one embodiment, the time unit comprises a positive integer number ofconsecutive multicarrier symbols.

In one embodiment, a number of multicarrier symbols comprised by thetime unit is configured by RRC.

In one embodiment, the first sub-signal comprises a radio signal.

In one embodiment, the first sub-signal comprises a baseband signal.

In one embodiment, the first sub-signal comprises an RF signal.

In one embodiment, the first sub-signal comprises SCI.

In one embodiment, the first sub-signal comprises 1st stage SCI.

In one embodiment, the first sub-signal comprises 2nd stage SCI.

In one embodiment, the first sub-signal comprises one or more fields in1st stage SCI.

In one embodiment, the first sub-signal comprises one or more fields in2nd stage SCI.

In one embodiment, the first reference signal comprises an SL referencesignal.

In one embodiment, the first reference signal comprises a CSI-RS.

In one embodiment, the first reference signal comprises an SL CSI-RS.

In one embodiment, the first reference signal comprises a SoundingReference Signal (SRS).

In one embodiment, the first reference signal comprises a DMRS.

In one embodiment, the first reference signal comprises an SL DMRS.

In one embodiment, the first reference signal comprises an aperiodicCSI-RS.

In one embodiment, the first sub-signal is used for determining atime-frequency resource occupied by the first reference signal.

In one embodiment, a time-frequency resource occupied by the firstsub-signal is used for determining a time-frequency resource occupied bythe first reference signal.

In one embodiment, the first reference signal occupies a firstmulticarrier symbol group within a first time unit in time domain, thefirst time unit is a time unit occupied by the first sub-signal, and thefirst multicarrier symbol group comprises at least one multicarriersymbol.

In one embodiment, a frequency-domain resource occupied by the firstsignal belongs to the first time unit.

In one embodiment, the first multicarrier symbol group only comprisesone multicarrier symbol.

In one embodiment, the first multicarrier symbol group comprises 2multicarrier symbols.

In one embodiment, a position of the first multicarrier symbol group inthe first time unit is configured by an RRC parameter.

In one embodiment, an RRC parameter used for configuring the firstmulticarrier symbol group comprises information of all or part of fieldsin SL-CSI-RS-Config.

In one embodiment, the first reference signal occupies a firstsubcarrier group within a first frequency-domain resource block infrequency domain, the first subcarrier group comprising more than onesubcarrier; the first sub-signal indicates the first frequency-domainresource block.

In one embodiment, the first frequency-domain resource block comprisesone sub-channel or a positive integer number of consecutivesub-channels, and the first sub-signal indicates a number ofsub-channels comprised by the first frequency-domain resource block.

In one embodiment, the first frequency-domain resource block comprises afrequency-domain resource occupied by the first sub-signal.

In one embodiment, a lowest PRB occupied by the first sub-signal belongsto a first sub-channel, the first sub-channel being a lowest sub-channelcomprised by the first frequency-domain resource block.

In one embodiment, a position of the first subcarrier group in the firstfrequency-domain resource block is configured by an RRC parameter.

In one embodiment, an RRC parameter used for configuring the firstsubcarrier group comprises information of all or part of fields inSL-CSI-RS-Config.

In one embodiment, a frequency-domain resource occupied by the firstsignal is the first frequency-domain resource.

In one embodiment, the first signal comprises a second sub-signal, andthe first sub-signal indicates scheduling information of the secondsub-signal.

In one embodiment, a time-frequency resource occupied by the firstreference signal is within a time-frequency resource occupied by thesecond sub-signal.

In one embodiment, the second sub-signal occupies the firstfrequency-domain resource block in frequency domain, and the first timeunit in time domain.

In one embodiment, the second sub-signal is transmitted on a PhysicalSidelink Shared Channel (PSSCH).

In one embodiment, the second sub-signal carries at least one of a TB, aCB or a CBG.

In one embodiment, the scheduling information comprises one or more thanone of a time-domain resource, a frequency-domain resource, a Modulationand Coding Scheme (MCS), a DeModulation Reference Signals (DMRS) port, aHARQ process number, a Redundancy Version (RV) or a New Data Indicator(NDI).

In one embodiment, the first field comprises a CSI request field in SCIformat 2-A.

In one embodiment, the first field comprises at least one bit.

In one embodiment, the first field comprises 1 bit.

In one embodiment, the first field comprises 2 bits.

In one embodiment, the first field comprises 3 bits.

In one embodiment, the first field in the first sub-signal is of a valueequal to 1.

In one embodiment, the first field in the first sub-signal is of a valuegreater than 0.

In one embodiment, the first field indicates whether a time-frequencyresource scheduled by SCI to which the first field belongs comprises aCSI-RS.

In one embodiment, the first field indicates whether a radio signalscheduled by SCI to which the first field belongs comprises a CSI-RS.

In one embodiment, the first field in the first sub-signal indicatesthat the first signal comprises the first reference signal.

In one embodiment, the first field in the first sub-signal indicatesthat the first reference signal is transmitted in a time-frequencyresource scheduled by the first sub-signal.

In one embodiment, the CSI refers to Channel State Information.

In one embodiment, the first CSI report comprises a Channel QualityIndicator (CQI).

In one embodiment, the first CSI report comprises a Rank Indicator (RI).

In one embodiment, a reference signal corresponding to the first CSIreport includes the first reference signal.

In one embodiment, the first CSI report is obtained by a measurement onthe first reference signal.

In one embodiment, the first CSI report is obtained by a channelmeasurement on the first reference signal.

In one embodiment, the first CSI report is obtained by an interferencemeasurement on the first reference signal.

In one embodiment, a transmitter of the first CSI report calculatescontents contained in the first CSI report only according to a channelmeasurement on the first reference signal.

In one embodiment, the first CSI report is an aperiodic CSI report.

In one embodiment, the second CSI report comprises a CQI.

In one embodiment, the second CSI report comprises a RI.

In one embodiment, a reference signal corresponding to the second CSIreport includes the second reference signal.

In one embodiment, the second CSI report is obtained by a measurement onthe second reference signal.

In one embodiment, the second CSI report is obtained by a channelmeasurement on the second reference signal.

In one embodiment, the second CSI report is obtained by an interferencemeasurement on the second reference signal.

In one embodiment, a transmitter of the second CSI report calculatescontents contained in the second CSI report only according to a channelmeasurement on the second reference signal.

In one embodiment, the second CSI report is an aperiodic CSI report.

In one embodiment, the second reference signal comprises an SL referencesignal.

In one embodiment, the second reference signal comprises a CSI-RS.

In one embodiment, the second reference signal comprises an SL CSI-RS.

In one embodiment, the second reference signal comprises an SRS.

In one embodiment, the second reference signal comprises a DMRS.

In one embodiment, the second reference signal comprises an SL DMRS.

In one embodiment, the second reference signal comprises an aperiodicCSI-RS.

In one embodiment, the first reference signal and the second referencesignal are respectively two transmissions of a same CSI-RS.

In one embodiment, the first reference signal and the second referencesignal are respectively single-transmissions of two different CSI-RSs.

In one embodiment, the first reference signal and the second referencesignal are Quasi-Co-Located (QCL).

In one embodiment, the first reference signal and the second referencesignal are QCL, corresponding to QCL-TypeD.

In one embodiment, the first reference signal and the second referencesignal are not QCL.

In one embodiment, the first reference signal and the second referencesignal are not QCL, let alone corresponding to QCL-TypeD.

In one embodiment, the second CSI report and the first CSI report arefor a same PC5-RRC connection.

In one embodiment, the second CSI report and the first CSI report sharea same transmitter.

In one embodiment, the first reference signal and the second referencesignal share a same target receiver.

In one embodiment, the first reference signal and the second referencesignal correspond to a same PC5-RRC connection.

In one embodiment, the first reference signal and the second referencesignal share a same Tx power.

In one embodiment, the first reference signal and the second referencesignal share a same Tx power per PRB.

In one embodiment, the first reference signal and the second referencesignal share a same Tx power per RE.

In one embodiment, the first reference signal and the second referencesignal have different Tx powers.

In one embodiment, the first reference signal and the second referencesignal have different Tx powers per PRB.

In one embodiment, the first reference signal and the second referencesignal have different Tx powers per RE.

In one embodiment, a channel that the second reference signal goesthrough can be inferred from a channel that the first reference signalgoes through.

In one embodiment, a channel that the second reference signal goesthrough cannot be inferred from a channel that the first referencesignal goes through.

In one embodiment, the first threshold is a positive integer.

In one embodiment, the first threshold is equal to 1.

In one embodiment, the first threshold is greater than 1.

In one embodiment, the first threshold is fixed.

In one embodiment, the first threshold is configured by an RRCparameter.

In one embodiment, the first threshold is configured by a PC5-RRCparameter.

In one embodiment, the phrase of capable of triggering a second CSIreport means being capable of transmitting the second reference signal.

In one embodiment, if the first node is capable of triggering the secondCSI report in the first time window, the first node autonomouslydetermines whether to trigger the second CSI report in the first timewindow.

In one embodiment, the first node is capable of triggering the secondCSI report in the first time window, and the first node will trigger thesecond CSI report in the first time window.

In one embodiment, the first node is capable of triggering the secondCSI report in the first time window, but the first node won't triggerthe second CSI report in the first time window.

In one embodiment, the first node is incapable of triggering the secondCSI report in the first time window, and the first node won't triggerthe second CSI report in the first time window.

Embodiment 18

Embodiment 18 illustrates a flowchart of a wireless transmissionaccording to one embodiment of the present disclosure, as shown in FIG.18 . In FIG. 18 , a second node U3 and a first node U4 are communicationnodes in transmission via an air interface. As shown in FIG. 18 , stepsmarked by boxes F181-184 are optional, respectively.

The second node U3 receives a second information block in step S18301;and receives a first signal set in step S1831; transmits a firstinformation block in step S18302; receives a fourth signal in stepS18303; and receives a third signal in a first time-frequency resourceblock in step S18304.

The first node U4 transmits a second information block in step S18401;and transmits a first signal set in step S1841; receives a firstinformation block in step S18402; transmits a fourth signal in stepS18403; and transmits a third signal in a first time-frequency resourceblock in step S18404.

In Embodiment 18, time-domain resource(s) occupied by one or moresignals comprised in the first signal set is(are) used for determining afirst time window; the first signal set comprises a first signal, thefirst signal comprising a first sub-signal and a first reference signal;the first sub-signal comprises a first field, and the first field of thefirst sub-signal is used by the first node U4 for triggering a first CSIreport; a first condition set is used by the first node U4 fordetermining whether the first node is capable of triggering a second CSIreport in the first time window; when the first condition set isfulfilled, the first node U4 is unable to trigger the second CSI reportin the first time window; when the first condition set is not fulfilled,the first node U4 is able to trigger the second CSI report in the firsttime window; the first condition set comprises at least one of a firstcondition or a second condition; the first condition comprises that anumber of signals comprised in the first signal set is no less than afirst threshold; the second condition comprises that a first index isequal to a second index, the first CSI report is associated with thefirst index, and the second CSI report is associated with the secondindex.

In one embodiment, the first node U4 is the first node in the presentdisclosure.

In one embodiment, the second node U3 is the first node in the presentdisclosure.

In one embodiment, an air interface between the second node U3 and thefirst node U4 includes a PC5 interface.

In one embodiment, an air interface between the second node U3 and thefirst node U4 includes a sidelink.

In one embodiment, an air interface between the second node U3 and thefirst node U4 includes a radio interface between a relay node and a UE.

In one embodiment, an air interface between the second node U3 and thefirst node U4 includes a radio interface between UEs.

In one embodiment, the first node is a terminal.

In one embodiment, the first node is an automobile.

In one embodiment, the first node is a vehicle.

In one embodiment, the first node is a Road Side Unit (RSU).

In one embodiment, the second node is a terminal.

In one embodiment, the second node is an automobile.

In one embodiment, the second node is a vehicle.

In one embodiment, the second node is an RSU.

In one embodiment, time-domain resource(s) occupied by one or moresignals in the first signal set is(are) used by the first node fordetermining the first time window.

In one embodiment, time-domain resource(s) occupied by one or moresignals in the first signal set is(are) used by the second node fordetermining the first time window.

In one embodiment, the first condition set is used by the first node fordetermining whether the first node is capable of triggering the secondCSI report in the first time window.

In one embodiment, the first condition set is used by the second nodefor determining whether the first node is capable of triggering thesecond CSI report in the first time window.

In one embodiment, the first sub-signal comprises two parts, which arerespectively transmitted on a PSCCH and a PSSCH.

In one embodiment, the first sub-signal is transmitted on a PSCCH.

In one embodiment, the first sub-signal is transmitted on a PSSCH.

In one embodiment, any signal in the first signal set comprises twoparts, which are respectively transmitted on a PSCCH and a PSSCH.

In one embodiment, the above method in a first node for wirelesscommunications comprises:

-   -   transmitting a third sub-signal in the first time window;    -   herein, the first node can trigger the second CSI report in the        first time window; the third sub-signal comprises one or more        fields in SCI, and the third sub-signal comprises the first        field, the first field in the third sub-signal being used to        trigger the second CSI report.

In one embodiment, the third sub-signal comprises two parts, which arerespectively transmitted on a PSCCH and a PSSCH.

In one embodiment, the third sub-signal is transmitted on a PSSCH.

In one embodiment, the above method in a first node for wirelesscommunications comprises:

-   -   dropping triggering the second CSI report in the first time        window;    -   herein, the first node can trigger the second CSI report in the        first time window.

In one embodiment, steps in the box F181 of FIG. 18 exist; the secondinformation block comprises configuration information of the firstreference signal and a first parameter, the first parameter being usedto determine the first time window.

In one embodiment, the first parameter is used by the first node fordetermining the first time window.

In one embodiment, the first parameter is used by the second node fordetermining the first time window.

In one embodiment, the second information block is transmitted on aPSSCH.

In one embodiment, steps marked by the box F182 in FIG. 18 exist; thefirst information block comprises a first channel quality and a secondchannel quality; a measurement on the first reference signal is used bythe second node U3 for determining the first channel quality and thesecond channel quality, the first channel quality and the second qualityare for a same frequency-domain resource, and respectively correspond toa first received quality and a second received quality, the firstchannel quality and the second quality being real numbers respectively,the first received quality being unequal to the second received quality.

In one embodiment, the first information block is transmitted on aPSSCH.

In one embodiment, steps marked by both the box F182 and the box F184 inFIG. 18 exist; a target receiver of the third signal is a targetreceiver of the first signal set; a target channel quality is used bythe first node U4 for determining a Modulation and Coding Scheme (MCS)employed by the third signal, and the target channel quality is eitherthe first channel quality or the second channel quality; whether thefirst time-frequency resource block is reserved is used the first nodeU4 for determining the target channel quality between the first channelquality and the second channel quality.

In one embodiment, the third signal is transmitted on a PSSCH.

In one embodiment, steps marked by the box F182, the box F183 and thebox F184 in FIG. 18 exist; the fourth signal comprises schedulinginformation of the third signal, and the fourth signal comprises SCI.

In one embodiment, the fourth signal is transmitted on a PSCCH.

In one embodiment, the fourth signal is transmitted on a PSSCH.

In one embodiment, the fourth signal comprises two parts, which arerespectively transmitted on a PSCCH and a PSSCH.

In one embodiment, both the first sub-signal and the fourth signalcomprise a second field, the second field of the first sub-signalindicates a first Destination ID, while the second field of the fourthsignal indicates a second Destination ID; the first Destination ID andthe second Destination ID are non-negative integers; the firstDestination ID is equal to the second Destination ID.

In one embodiment, the fourth signal is transmitted in the firsttime-frequency resource block.

Embodiment 19

Embodiment 19 illustrates a schematic diagram of a first condition setbeing used to determine whether a first node is capable of triggering asecond CSI report in a first time window according to one embodiment ofthe present disclosure; as shown in FIG. 19 . In Embodiment 19, ininstances when the first condition set is fulfilled, the first node isincapable of triggering the second CSI report in the first time window;in instances when the first condition set is unfulfilled, the first nodeis capable of triggering the second CSI report in the first time window.

In one embodiment, the first condition set comprises only the firstcondition of the first condition and the second condition.

In one embodiment, the first condition set comprises only the secondcondition of the first condition and the second condition.

In one embodiment, the first condition set comprises the first conditionand the second condition.

In one embodiment, the first condition set is composed of the firstcondition and the second condition.

In one embodiment, the first condition set is composed of K conditions,K being a positive integer greater than 1; when each of the K conditionsis fulfilled, the first condition set is fulfilled; when any one of theK conditions is unfulfilled, the first condition set is unfulfilled.

In one embodiment, the first condition set only comprises one condition;if the condition is fulfilled, the first condition set is fulfilled; ifthe condition is not fulfilled, the first condition set is notfulfilled.

In one embodiment, the first condition comprises: the S CSI reports arerespectively associated with S first-type indexes, the first index isone of the S first-type indexes being associated with the first CSIreport, and each of the S first-type indexes is of a value equal to thefirst index.

In one embodiment, the first condition set is composed of the firstcondition and the second condition; when and only when the firstcondition and the second condition are fulfilled will the firstcondition set be fulfilled.

Embodiment 20

Embodiment 20 illustrates a schematic diagram of a first CSI reportbeing associated with a first index and a second CSI report beingassociated with a second index according to one embodiment of thepresent disclosure; as shown in FIG. 20 .

In one embodiment, the first index and the second index are non-negativeintegers, respectively.

In one embodiment, the first index is equal to the second index.

In one embodiment, the first index is unequal to the second index.

In one embodiment, the first CSI report is a report corresponding to afirst report configuration.

In one embodiment, the phrase that the first CSI report is associatedwith the first index means that the first report configuration isassociated with the first index.

In one embodiment, the first index is used for identifying the firstreport configuration.

In one embodiment, the first report configuration indicates contentscontained in the first CSI report.

In one embodiment, the first report configuration comprises informationof one or more than one field in an Information Element (IE).

In one embodiment, the first report configuration comprises all or partof information in a PC5-RRC message.

In one embodiment, the first report configuration comprises part ofinformation in an RRCReconfigurationSidelink message.

In one embodiment, the first report configuration comprises part ofinformation in RRCReconfigurationSidelink-IEs in anRRCReconfigurationSidelink message.

In one embodiment, the second CSI report is a report corresponding to asecond report configuration.

In one embodiment, the phrase that the second CSI report is associatedwith the second index means that the second report configuration isassociated with the second index.

In one embodiment, the second index is used for identifying the secondreport configuration.

In one embodiment, the second report configuration indicates contentscontained in the second CSI report.

In one embodiment, the second report configuration comprises informationof one or more than one field in an Information Element (IE).

In one embodiment, the second report configuration comprises all or partof information in a PC5-RRC message.

In one embodiment, the second report configuration comprises part ofinformation in an RRCReconfigurationSidelink message.

In one embodiment, the second report configuration comprises part ofinformation in RRCReconfigurationSidelink-IEs-r16 in anRRCReconfigurationSidelink message.

In one embodiment, the first report configuration is the second reportconfiguration.

In one embodiment, the first report configuration and the second reportconfiguration are two different report configurations.

In one embodiment, what the first CSI report contains comprises a CQIand an RI.

In one embodiment, what the second CSI report contains comprises a CQIand an RI.

In one embodiment, the first index is equal to a codepoint of a CSIrequest field corresponding to the first CSI report.

In one embodiment, the second index is equal to a codepoint of a CSIrequest field corresponding to the second CSI report.

In one embodiment, the first index is equal to a codepoint of a CSIrequest field corresponding to the first report configuration.

In one embodiment, the second index is equal to a codepoint of a CSIrequest field corresponding to the second report configuration.

In one embodiment, the phrase that the first CSI report is associatedwith the first index means that the first reference signal is used fordetermining the first index.

In one embodiment, the first index is used for identifying the firstreference signal.

In one embodiment, the first index is an identifier of a referencesignal resource corresponding to the first reference signal.

In one embodiment, the first index is an identifier of a referencesignal resource set to which a reference signal resource correspondingto the first reference signal belongs.

In one embodiment, a reference signal resource corresponding to thefirst reference signal comprises a CSI-RS resource.

In one embodiment, a reference signal resource set to which a referencesignal resource corresponding to the first reference signal belongscomprises a CSI-RS resource set.

In one embodiment, the phrase that the second CSI report is associatedwith the second index means that the second reference signal is used fordetermining the second index.

In one embodiment, the second index is used for identifying the secondreference signal.

In one embodiment, the second index is an identifier of a referencesignal resource corresponding to the second reference signal.

In one embodiment, the second index is an identifier of a referencesignal resource set to which a reference signal resource correspondingto the second reference signal belongs.

In one embodiment, a reference signal resource corresponding to thesecond reference signal comprises a CSI-RS resource.

In one embodiment, a reference signal resource set to which a referencesignal resource corresponding to the second reference signal belongscomprises a CSI-RS resource set.

In one embodiment, a spatial relation of the first reference signal isused for determining the first index.

In one embodiment, a spatial relation of the second reference signal isused for determining the second index.

In one embodiment, the spatial relation comprises a TCI state.

In one embodiment, the spatial relation comprises a QCL assumption.

In one embodiment, the spatial relation comprises a spatial setting.

In one embodiment, the spatial relation comprises a spatial domainfilter.

In one embodiment, the spatial relation comprises a Spatial Txparameter.

In one embodiment, the spatial relation comprises a Spatial Rxparameter.

In one embodiment, if the first reference signal and the secondreference signal are two different transmissions of a same CSI-RS, thefirst index is equal to the second index; if the first reference signaland the second reference signal are respectively single-transmissions oftwo different CSI-RSs, the first index is unequal to the second index.

In one embodiment, if the first reference signal and the secondreference signal are QCL, the first index is equal to the second index;if the first reference signal and the second reference signal arenon-QCL, the first index is unequal to the second index.

In one embodiment, if the first reference signal and the secondreference signal are QCL, corresponding to QCL-TypeD, the first index isequal to the second index; if the first reference signal and the secondreference signal are non-QCL, corresponding to QCL-TypeD, the firstindex is unequal to the second index.

In one embodiment, if a reference signal resource corresponding to thefirst reference signal and a reference signal resource corresponding tothe second reference signal belong to a same reference signal resourceset, the first index is equal to the second index; if a reference signalresource corresponding to the first reference signal and a referencesignal resource corresponding to the second reference signalrespectively belong to different reference signal resource sets, thefirst index is unequal to the second index.

Embodiment 21

Embodiment 21 illustrates a schematic diagram of S signals, S first-typesub-signals and S reference signals according to one embodiment of thepresent disclosure; as shown in FIG. 21 . In Embodiment 21, the Ssignals respectively comprise the S first-type sub-signals, and the Ssignals respectively comprise the S reference signals; the first fieldsrespectively comprised by the S first-type sub-signals are used fortriggering the S CSI reports respectively; the S signals share a sametarget receiver. In FIG. 21 , indexes of the S signals, the S first-typesub-signals, the S reference signals and the S CSI reports are #0 . . ., and #(S−1), respectively.

In one embodiment, the first fields in the S first-type sub-signals arerespectively used by the first node for triggering the S CSI reports.

In one embodiment, the first signal is any one of the S signals.

In one embodiment, the S signals are mutually orthogonal in time domain.

In one embodiment, there are two signals of the S signals beingoverlapping in time domain resources.

In one embodiment, of the S signals there is one signal earlier than thefirst signal in time domain.

In one embodiment, of the S signals there is one signal later than thefirst signal in time domain.

In one embodiment, of the S signals there is one signal overlapping withthe first signal in time domain.

In one embodiment, the S signals respectively comprise S second-typesub-signals, and the S first-type sub-signals respectively indicatescheduling information of the S second-type sub-signals.

In one subembodiment, the S second-type sub-signals are respectivelytransmitted on S PSSCHs.

In one subembodiment, any of the S second-type sub-signals carries atleast one of a TB, a CB or a CBG.

In one embodiment, the first sub-signal is one of the S first-typesub-signals.

In one embodiment, the first sub-signal is a first-type sub-signalcomprised by the first signal.

In one embodiment, any of the S first-type sub-signals comprises SCI.

In one embodiment, any of the S first-type sub-signals comprises 1ststage SCI.

In one embodiment, any of the S first-type sub-signals comprises 2ndstage SCI.

In one embodiment, any of the S first-type sub-signals comprises twoparts, which are respectively transmitted on a PSCCH and a PSSCH.

In one embodiment, any of the S first-type sub-signals is transmitted ona PSSCH.

In one embodiment, any of the S first-type sub-signals is transmitted ona PSCCH.

In one embodiment, a value of the first field in each of the Sfirst-type sub-signals is equal to 1.

In one embodiment, a value of the first field in each of the Sfirst-type sub-signals is greater than 0.

In one embodiment, values of the first fields in the S first-typesub-signals are equal.

In one embodiment, the first reference signal is one of the S referencesignals.

In one embodiment, reference signal corresponding to the S CSI reportsrespectively comprise the S reference signals.

In one embodiment, the S CSI reports are respectively obtained bymeasurements on the S reference signals.

In one embodiment, the S CSI reports are respectively obtained bychannel measurements on the S reference signals.

In one embodiment, the S CSI reports are respectively obtained byinterference measurements on the S reference signals.

In one embodiment, for any given signal of the S signals, the givensignal comprises a given first-type sub-signal of the S first-typesub-signals and a given reference signal of the S reference signals, andthe first field comprised in the given first-type sub-signal is used fortriggering a given CSI report of the S CSI reports; a transmitter of thegiven CSI report calculates contents contained by the given CSI reportonly according to a channel measurement on the given reference signal.

In one embodiment, the S reference signals respectively comprise SLreference signals.

In one embodiment, the S reference signals respectively comprise SLCSI-RSs.

In one embodiment, the S reference signals respectively comprise SRSs.

In one embodiment, the S reference signals respectively comprise SLDMRSs.

In one embodiment, the S reference signals are respectively Stransmissions of a same CSI-RS.

In one embodiment, the S reference signals are respectively Stransmissions of a same SL CSI-RS.

In one embodiment, any two of the S reference signals are QCL.

In one embodiment, any two of the S reference signals are QCL,corresponding to QCL-TypeD.

In one embodiment, the S reference signals have a same Tx power.

In one embodiment, the S reference signals have a same Tx power per PRB.

In one embodiment, the S reference signals have a same Tx power per RE.

In one embodiment, the first fields in the S first-type sub-signalsrespectively indicate that the S reference signals are transmitted.

In one embodiment, the S first-type sub-signals respectively schedule Stime-frequency resource blocks, the S signals are respectivelytransmitted in the S time-frequency resource blocks, and the firstfields in the S first-type sub-signals respectively indicate that the Sreference signals are transmitted respectively in the S time-frequencyresource blocks.

In one embodiment, the first CSI report is one of the S CSI reports.

In one embodiment, the first CSI report is one of the S CSI reports thatis triggered by the first field in the first sub-signal.

In one embodiment, the S CSI reports are respectively S reportscorresponding to the first report configuration.

In one embodiment, the S CSI reports correspond to a same PC5-RRCconnection.

In one embodiment, the S CSI reports correspond to a same transmitter.

In one embodiment, the S CSI reports are respectively associated with Sfirst-type indexes, the first index is a first-type index associatedwith the first CSI report, and all of the S first-type indexes are of avalue equal to the first index.

In one embodiment, the phrase that a given CSI report is associated witha given first-type index has a similar meaning to the phrase that thefirst CSI report is associated with the first index, except that thefirst CSI report and the first index are respectively replaced with thegiven CSI report and the given first-type index; the given CSI report isany CSI report of the S CSI reports, and the given first-type index isone of the S first-type indexes being associated with the given CSIreport.

In one embodiment, the S first-type indexes are non-negative integers,respectively.

In one embodiment, any of the S first-type indexes is used foridentifying the first report configuration.

In one embodiment, the S first-type indexes are respectively used foridentifying report configurations for the S CSI reports.

In one embodiment, the S first-type indexes are CSI request fieldcodepoints corresponding to report configurations for the S CSI reports.

In one embodiment, the S reference signals are respectively used fordetermining the S first-type indexes.

In one embodiment, the S first-type indexes are respectively used foridentifying the S reference signals.

In one embodiment, the S first-type indexes are respectively used foridentifying reference signal resources corresponding to the S referencesignals.

In one embodiment, the S first-type indexes are respectively used foridentifying reference signal resource sets to which reference signalresources corresponding to the S reference signals respectively belong.

In one embodiment, the S reference signals are respectively Stransmissions of a first CSI-RS.

In one embodiment, any of the S first-type indexes is an identifier ofthe first CSI-RS.

In one embodiment, any of the S first-type indexes is an identifier of areference signal resource corresponding to the first CSI-RS.

In one embodiment, any of the S first-type indexes is an identifier of areference signal resource set to which a reference signal resourcecorresponding to the first CSI-RS belongs.

In one embodiment, spatial relations of the S reference signals arerespectively used for determining the S first-type indexes.

In one embodiment, any of the S CSI reports comprises a CQI.

In one embodiment, any of the S CSI reports comprises an RI.

In one embodiment, any of the S CSI reports is an aperiodic CSI report.

In one embodiment, the phrase that the S signals share a same targetreceiver includes a meaning that any of the S first-type sub-signalscomprises a second field, the second fields in the S first-typesub-signals respectively indicate S Destination IDs, and any two of theS Destination IDs are the same.

In one embodiment, the second field comprises information of DestinationID fields in SCI format 2-A and SCI format 2-B.

In one embodiment, any of the S Destination IDs is a non-negativeinteger.

In one embodiment, the first Destination ID is one of the S DestinationIDs.

In one embodiment, the phrase that the S signals share a same targetreceiver includes a meaning that the S CSI reports share a sametransmitter.

Embodiment 22

Embodiment 22 illustrates a schematic diagram of S time windows and afirst time window according to one embodiment of the present disclosure,as shown in FIG. 22 . In Embodiment 22, time-domain resources occupiedby the S signals are respectively used for determining the S timewindows, and the S time windows are used for determining the first timewindow. In FIG. 22 , indexes of the S time windows are #0 . . . , and#(S−1), respectively.

In one embodiment, time-domain resources occupied by the S signals arerespectively used by the first node for determining the S time windows,and the S time windows are used by the first node for determining thefirst time window.

In one embodiment, time-domain resources occupied by the S signals arerespectively used by the second node for determining the S time windows,and the S time windows are used by the second node for determining thefirst time window.

In one embodiment, any of the S time windows is a contiguous timeduration.

In one embodiment, any of the S time windows comprises one multicarriersymbol or multiple consecutive multicarrier symbols.

In one embodiment, any of the S time windows comprises one slot ormultiple consecutive slots.

In one embodiment, any of the S time windows comprises one time unit ormultiple consecutive time units.

In one embodiment, any two of the S time windows are overlapping in timedomain.

In one embodiment, any two of the S time windows are not completelyoverlapping in time domain.

In one embodiment, there are two of the S time windows being completelyoverlapping in time domain.

In one embodiment, any two of the S time windows are of an equal length.

In one embodiment, any of the S time windows is of a length equal to thefirst parameter.

In one embodiment, a number of slots comprised by any of the S timewindows is equal to the first parameter.

In one embodiment, a start of a time window corresponding to any givensignal out of the S signals is an end time of a time-domain resourceoccupied by the given signal.

In one embodiment, a start of a time window corresponding to any givensignal out of the S signals is a start time of a time-domain resourceoccupied by the given signal.

In one embodiment, a start of a time window corresponding to any givensignal out of the S signals is an end time of a slot occupied by thegiven signal.

In one embodiment, a start of a time window corresponding to any givensignal out of the S signals is a start time of a slot occupied by thegiven signal.

In one embodiment, a start of a time window corresponding to any givensignal out of the S signals is an end time of a time unit occupied bythe given signal.

In one embodiment, a start of a time window corresponding to any givensignal out of the S signals is a start time of a time unit occupied bythe given signal.

In one embodiment, an end of any given time window of the S time windowsis end time of a last slot expected to receive or accomplish a CSIreport corresponding to the given time window.

In one embodiment, the first time window comprises common parts of the Stime windows.

In one embodiment, the first time window is composed of common parts ofthe S time windows.

In one embodiment, the first time window is an intersection of the Stime windows.

Embodiment 23

Embodiment 23 illustrates a schematic diagram of S time windows and afirst time window according to one embodiment of the present disclosure;as shown in FIG. 23 . In FIG. 23 , indexes of the S time windows are #0. . . , and #(S−1), respectively. In Embodiment 23, the first timewindow is a union set of S time windows.

In one embodiment, the first time window is a set of the S time windows.

In one embodiment, the first time window comprises a set of the S timewindows.

Embodiment 24

Embodiment 24 illustrates a schematic diagram of a first informationblock according to one embodiment of the present disclosure; as shown inFIG. 24 . In Embodiment 24, the first information block comprises thefirst channel quality and the second channel quality.

In one embodiment, the first information block is carried by a physicallayer signaling.

In one embodiment, the first information block is carried by a L1signaling.

In one embodiment, the first information block is carried by a MediumAccess Control layer Control Element (MAC CE).

In one embodiment, the first information block is transmitted in thefirst time window.

In one embodiment, the first information block is transmitted outsidethe first time window.

In one embodiment, the first information block is transmitted in one ofthe S time windows.

In one embodiment, the first information block comprises the first CSIreport.

In one embodiment, measurements on the S reference signals are used fordetermining the first information block.

In one embodiment, a measurement on each of the S reference signals isused for determining the first information block.

In one embodiment, measurements on some of the S reference signals areused for determining the first information block.

In one embodiment, the first information block comprises each CSI reportof the S CSI reports.

In one embodiment, the first node triggers the second CSI report in thefirst time window, and a measurement on the second reference signal isused for determining the first information block.

In one embodiment, the first node triggers the second CSI report in thefirst time window, the first information block comprising the second CSIreport.

In one embodiment, the first CSI report comprises a first CQI, the firstchannel quality being the first CQI.

In one embodiment, the S CSI reports respectively comprise S CQIs.

In one subembodiment, the first channel quality is a largest one of theS CQIs.

In one subembodiment, the second channel quality is a smallest one ofthe S CQIs.

In one subembodiment, the second channel quality is not any one of the SCQIs.

In one embodiment, the first information block comprises a firstinformation sub-block, the first information sub-block indicating that ameasurement on the first reference signal is used for determining thefirst information block.

In one embodiment, the first information block comprises a firstinformation sub-block, the first information sub-block indicating onwhich reference signals of the S reference signals measurements are usedfor determining the first information block.

In one embodiment, the first channel quality and the second channelquality respectively comprise one CQI.

In one embodiment, the first channel quality and the second channelquality are respectively CQIs.

In one embodiment, the first channel quality and the second channelquality respectively comprise a Reference Signal Received Power (RSRP).

In one embodiment, the first channel quality and the second channelquality respectively comprise a Signal-to-noise and interference ratio(SINR).

In one embodiment, the first channel quality and the second channelquality correspond to a same PRB set.

In one embodiment, the first information block comprises a first RI anda second RI, and the first channel quality and the second channelquality are respectively calculated when given the first RI and thesecond RI; the first RI and the second RI are positive integers,respectively.

In one embodiment, the first RI is unequal to the second RI.

In one embodiment, the first RI is equal to the second RI.

In one embodiment, the first channel quality and the second channelquality are respectively CQIs, and the first information block indicatesa CQI index corresponding to the first channel quality and a CQI indexcorresponding to the second channel quality respectively.

Embodiment 25

Embodiment 25 illustrates a schematic diagram of a first channel qualityand a second channel quality respectively corresponding to a firstreceived quality and a second received quality according to oneembodiment of the present disclosure; as shown in FIG. 25 . InEmbodiment 25, the first channel quality indicates: when a first bitblock occupies a first reference resource block, and the first bit blockadopts a modulation mode-code rate-TB size combination corresponding tothe first channel quality and a received quality of the first bit blockis the first received quality, the first bit block can be received witha TB BLER (i.e., Block Error Rate) not exceeding a second threshold; thesecond channel quality indicates: when the first bit block occupies thefirst reference resource block, and the first bit block adopts amodulation mode-code rate-TB size combination corresponding to thesecond channel quality and a received quality of the first bit block isthe second received quality, the first bit block can be received with aTB BLER not exceeding the second threshold.

In one embodiment, the first information block comprises a secondinformation sub-block, and the second information sub-block indicatesthe first reference resource block.

In one embodiment, the second information sub-block indicates afrequency-domain resource occupied by the first reference resourceblock.

In one embodiment, the second information sub-block indicates atime-domain resource occupied by the first reference resource block.

In one embodiment, a time-frequency resource occupied by the firstreference resource block is associated with a time-frequency resourceoccupied by the first reference signal.

In one embodiment, a time-frequency resource occupied by the firstreference resource block is associated with time-frequency resourcesoccupied by the S reference signals.

In one embodiment, the first reference resource block comprises morethan one RE in time-frequency domain.

In one embodiment, the first reference resource block comprises at leastone PRB in frequency domain.

In one embodiment, the first reference resource block comprises 1 slotin time domain.

In one embodiment, the first reference resource block comprises multipleslots in time domain.

In one embodiment, the first reference resource block comprises 1 SLslot.

In one embodiment, the first reference resource block comprises multipleSL slots.

In one embodiment, the first reference resource block is defined as aPRB group occupied by the first reference signal in frequency domain.

In one embodiment, the first reference resource block is defined as asub-channel group occupied by the first reference signal in frequencydomain.

In one embodiment, the first reference resource block is defined as asub-channel group occupied by the first signal in frequency domain.

In one embodiment, the first reference resource block is defined as aunion of PRB groups occupied by the S reference signals in frequencydomain.

In one embodiment, the first reference resource block is defined as aunion of sub-channel groups occupied by the S reference signals infrequency domain.

In one embodiment, the first reference resource block is defined as aunion of sub-channel groups occupied by the S signals in frequencydomain.

In one embodiment, the first reference resource block is defined as aslot occupied by the first signal in time domain.

In one embodiment, the first reference resource block is defined as anSL slot occupied by the first signal in time domain.

In one embodiment, the first reference resource block is defined as anSL slot occupied by a CSI request corresponding to the first CSI reportin time domain.

In one embodiment, the first reference resource block is defined as aunion of SL slots occupied by the S signals in time domain.

In one embodiment, the first reference resource block is defined as aunion of SL slots occupied by CSI requests corresponding to S CSIreports in time domain.

In one embodiment, a time-domain resource occupied by the firstreference resource block is associated with a time-domain resourceoccupied by the first information block.

In one embodiment, a second time unit is a time unit to which the firstinformation block belongs, and the second time unit is used fordetermining a time-domain resource occupied by the first referenceresource block.

In one embodiment, the first reference resource block is located beforethe second time unit in time domain.

In one embodiment, the first reference resource block is defined as thesecond time unit in time domain.

In one embodiment, the first reference resource block is defined as atarget time unit in time domain, and the target time unit is a latesttime unit available for V2X transmission no later than the second timeunit, with a start time between which and a start time of the secondtime unit there is a time interval no smaller than a second parameter;the second parameter is a non-negative integer.

In one subembodiment, a delay requirement is used for determining thesecond parameter.

In one subembodiment, the second parameter is configured by PC5-RRC.

In one embodiment, both a frequency-domain resource corresponding to thefirst channel quality and a frequency-domain resource corresponding tothe second channel quality are frequency-domain resource occupied by thefirst reference resource block.

In one embodiment, the first bit block comprises a TB.

In one embodiment, the first bit block comprises a TB transmitted on aPSSCH.

In one embodiment, the TB BLER refers to Transport Block ErrorProbability.

In one embodiment, the second threshold is a positive real number lessthan 1.

In one embodiment, the second threshold is 0.1.

In one embodiment, the second threshold is 0.00001.

In one embodiment, the second threshold is 0.000001.

In one embodiment, the second threshold is a positive real number nogreater than 0.1 and no less than 0.000001.

In one embodiment, the first received quality and the second receivedquality are real numbers respectively.

In one embodiment, the first received quality and the second receivedquality are non-negative real numbers respectively.

In one embodiment, the first received quality and the second receivedquality are respectively measured in dB.

In one embodiment, the first received quality and the second receivedquality are respectively measured in dBm.

In one embodiment, the first received quality and the second receivedquality are respectively measured in Watts.

In one embodiment, the received quality comprises a SINR.

In one embodiment, the received quality is a SINR.

In one embodiment, the received quality comprises a RSRP.

In one embodiment, the received quality comprises a signal power.

In one embodiment, the received quality comprises an interference andnoise power.

In one embodiment, the received quality of the first bit block refers toa received quality of a radio signal carrying the first bit block.

In one embodiment, the received quality of the first bit block is equalto a linear average value of power contribution of an RE carrying thefirst bit block being divided by a linear average value of interferenceand noise power contribution of an RE carrying the first bit block.

In one embodiment, the received quality of the first bit block is equalto a dB value of a ratio of a linear average value of power contributionof an RE carrying the first bit block to a linear average value ofinterference and noise power contribution of an RE carrying the firstbit block.

In one embodiment, the received quality of the first bit block is a RSRPof an RE carrying the first bit block.

In one embodiment, the received quality of the first bit block is alinear average value of interference and noise power contribution of anRE carrying the first bit block.

In one embodiment, the received quality of the first bit block is a realnumber.

In one embodiment, the received quality of the first bit block is anon-negative real number.

In one embodiment, the received quality of the first bit block ismeasured in dB.

In one embodiment, the received quality of the first bit block ismeasured in dBm.

In one embodiment, the received quality of the first bit block ismeasured in Watts.

In one embodiment, a first spatial domain filter is used for determiningthe first received quality, and a second spatial domain filter is usedfor determining the second received quality; the second spatial domainfilter is different from the first spatial domain filter.

In one embodiment, a transmitter of the first information block uses thefirst spatial domain filter to measure the first reference signal toobtain the first received quality.

In one embodiment, a transmitter of the first information block uses thesecond spatial domain filter to measure the first reference signal toobtain the second received quality.

In one embodiment, S is equal to 2; a transmitter of the firstinformation block uses the second spatial domain filter to measure eachof the S reference signals different from the first reference signal toobtain the second received quality.

In one embodiment, P spatial domain filters are used for determining thefirst received quality and the second received quality, P being apositive integer greater than 1; any two of the P spatial domain filtersare different.

In one embodiment, a transmitter of the first information block uses theP spatial domain filters to measure the first reference signal torespectively obtain P received qualities; the first received quality isa maximum received quality of the P received qualities.

In one embodiment, P is equal to S, a transmitter of the firstinformation block uses the P spatial domain filters to respectivelymeasure the S reference signals to respectively obtain P receivedqualities; the first received quality is a maximum received quality ofthe P received qualities.

In one embodiment, the second received quality is an average value ofthe P received qualities.

In one embodiment, the second received quality is an average value oflinear values of the P received qualities.

In one embodiment, the second received quality is an average value of dBvalues of the P received qualities.

In one embodiment, the second received quality is an average value ofdBm values of the P received qualities.

In one embodiment, the second received quality is a minimum receivedquality of the P received qualities.

In one embodiment, P is equal to S, a transmitter of the firstinformation block uses the P spatial domain filters to respectivelymeasure the S reference signals to respectively obtain P powercontribution values and P interference and noise power contributionvalues; the second received quality is a ratio of a linear average valueof the P power contribution values to a linear average value of the Pinterference and noise power contribution values.

In one embodiment, the spatial domain filter includes spatial domainreceive filter.

Embodiment 26

Embodiment 26 illustrates a schematic diagram of using a given spatialdomain filter to measure a given reference signal to obtain a givenreceived quality according to one embodiment of the present disclosure;as shown in FIG. 26 . In Embodiment 26, a transmitter of the firstinformation block uses the given spatial domain filter to measure thegiven reference signal to obtain the given received quality; the givenreceived quality is the first received quality or the second receivedquality, or any one of the P received qualities; the given spatialdomain filter is the first spatial domain filter, or the second spatialdomain filter, or any of the P spatial domain filters corresponding tothe given received quality; the given reference signal is the firstreference signal or one of the S reference signals corresponding to thegiven received quality.

In one embodiment, the given received quality is the first receivedquality, the given spatial domain filter is the first spatial domainfilter, and the given reference signal is the first reference signal.

In one embodiment, the given received quality is the second receivedquality, the given spatial domain filter is the second spatial domainfilter, and the given reference signal is the first reference signal.

In one embodiment, S is equal to 2; the given received quality is thesecond received quality, the given spatial domain filter is the secondspatial domain filter, and the given reference signal is one of the Sreference signals other than the first reference signal.

In one embodiment, the given received quality is any of the P receivedqualities, the given spatial domain filter is one of the P spatialdomain filters corresponding to the given received quality; the givenreference signal is the first reference signal.

In one embodiment, P is equal to S, a transmitter of the firstinformation block uses the P spatial domain filters to measure the Sreference signals respectively to obtain P received qualities; the givenreceived quality is any one of the P received qualities, and the givenspatial domain filter and the given reference signal are respectively aspatial domain filter and a reference signal corresponding to the givenreceived quality.

In one embodiment, the given received quality is equal to a linearaverage value of power contribution of an RE carrying the givenreference signal being divided by a linear average value of interferenceand noise power contribution of an RE carrying the given referencesignal.

In one embodiment, the given received quality is equal to a ratio of alinear average value of power contribution of an RE carrying the givenreference signal to a linear average value of interference and noisepower contribution of an RE carrying the given reference signal obtainedby a transmitter of the first information block receiving the givenreference signal with the given spatial domain filter.

In one embodiment, the given received quality is equal to a dB value ofa ratio of a linear average value of power contribution of an REcarrying the given reference signal to a linear average value ofinterference and noise power contribution of an RE carrying the givenreference signal obtained by a transmitter of the first informationblock receiving the given reference signal with the given spatial domainfilter.

In one embodiment, the given received quality is equal to an RSRP of anRE carrying the given reference signal obtained by a transmitter of thefirst information block receiving the given reference signal with thegiven spatial domain filter.

In one embodiment, the given received quality is equal to a linearaverage of interference and noise power contribution of an RE carryingthe given reference signal obtained by a transmitter of the firstinformation block receiving the given reference signal with the givenspatial domain filter.

Embodiment 27

Embodiment 27 illustrates a schematic diagram of a first time-frequencyresource block, a target channel quality and an MCS employed by a thirdsignal according to one embodiment of the present disclosure; as shownin FIG. 27 . In Embodiment 27, the third signal is transmitted in thefirst time-frequency resource block; the target channel quality is usedfor determining an MCS of the third signal; whether the firsttime-frequency resource block is reserved is used for determining thetarget channel quality from the first channel quality and the secondchannel quality.

In one embodiment, the third signal comprises a radio signal.

In one embodiment, the third signal comprises a baseband signal.

In one embodiment, the third signal comprises an RF signal.

In one embodiment, the third signal is transmitted through Unicast.

In one embodiment, the third signal is transmitted through Groupcast.

In one embodiment, the third signal is transmitted through Broadcast.

In one embodiment, the third signal is transmitted in SideLink.

In one embodiment, the third signal is transmitted via a PC5 interface.

In one embodiment, the third signal carries at least one of a TB, a CBor a CBG.

In one embodiment, the first time-frequency resource block comprises apositive integer number of RE(s) in time-frequency domain.

In one embodiment, the first time-frequency resource block comprises apositive integer number of multicarrier symbol(s) in time domain.

In one embodiment, the first time-frequency resource block comprises oneslot in time domain.

In one embodiment, the first time-frequency resource block comprises oneSL slot in time domain.

In one embodiment, the first time-frequency resource block comprises onesub-channel or a positive integer number of consecutive sub-channels infrequency domain.

In one embodiment, the target channel quality is a CQI, and the targetchannel quality comprises a modulation mode, a code rate and atransmission efficiency.

In one embodiment, a modulation mode and a code rate of the third signalare respectively equal to the modulation mode and code rate comprised bythe target channel quality.

In one embodiment, an absolute value of a difference between atransmission efficiency of the third signal and a transmissionefficiency comprised by the target channel quality is no greater than afirst given threshold, the first given threshold being a non-negativereal number.

In one embodiment, a target received quality is one of the firstreceived quality and the second received quality that corresponds to thetarget channel quality, and the target received quality is used fordetermining a third received quality, the third received quality is usedfor determining a third CQI, and a modulation mode and code rate of thethird signal are respectively the modulation mode and code ratecomprised by the third CQI.

In one embodiment, the target received quality is obtained by the firstnode through looking up tables according to the target channel quality.

In one embodiment, the target received quality is equal to an abscissavalue of a point in a given curve whose corresponding Y-coordinate valueis equal to the target channel quality.

In one embodiment, the third received quality is an estimated value of aSINR of the third signal.

In one embodiment, the third received quality is a sum of a dB value ofthe target received quality and a first power difference value; thefirst power different value is equal to a difference between a Tx powerper RE measured in dBm of the third signal and a dBm value of a first Txpower value.

In one embodiment, the first Tx power value is equal to a Tx power perRE of the first reference signal.

In one embodiment, the first Tx power value is equal to a linear averagevalue of Tx powers per RE of the S reference signals.

In one embodiment, the third CQI is obtained through looking up tablesaccording to the third received quality.

In one embodiment, the third CQI is equal to a Y-coordinate value of apoint in a given curve whose corresponding abscissa value is equal tothe third received quality.

In one embodiment, the first node autonomously determines an MCS of thethird signal according to the target channel quality.

In one embodiment, an MCS of the third signal is unrelated to any of thefirst channel quality and the second channel quality that is differentfrom the target channel quality.

In one embodiment, the phrase of whether the first time-frequencyresource block is reserved includes whether the first time-frequencyresource block is reserved by the first node.

In one embodiment, the phrase of whether the first time-frequencyresource block is reserved includes that the first node transmits afirst signaling, the first signaling comprising one or more than onefield in 1st stage SCI and indicating that the first time-frequencyresource block is reserved.

In one embodiment, a third field in the first signaling indicates thatthe first time-frequency resource block is reserved, and the third fieldcomprises all or part of information in a Time resource assignment fieldin SCI format 1-A.

In one embodiment, a third field in the second signaling indicates thatthe first time-frequency resource block is reserved, and the third fieldcomprises all or part of information in a Frequency resource assignmentfield in SCI format 1-A.

In one embodiment, if the first time-frequency resource block isreserved, the target channel quality is the first channel quality; ifthe first time-frequency resource block is not reserved, the targetchannel quality is the second channel quality.

In one embodiment, if the first time-frequency resource block isreserved, the target channel quality is the second channel quality; ifthe first time-frequency resource block is not reserved, the targetchannel quality is the first channel quality.

Embodiment 28

Embodiment 28 illustrates a schematic diagram of a second informationblock according to one embodiment of the present disclosure; as shown inFIG. 28 . In Embodiment 28, the second information block comprisesconfiguration information of the first reference signal and the firstparameter.

In one embodiment, the second information block is carried by a higherlayer signaling.

In one embodiment, the second information block is carried by an RRCsignaling.

In one embodiment, the second information block is carried by a PC5-RRCmessage.

In one embodiment, the second information block is carried by a MAC CE.

In one embodiment, the second information block comprises information ofall or part of fields in an IE.

In one embodiment, a name of a PC5-RRC message carrying the secondinformation block includes Reconfiguration.

In one embodiment, a name of a PC5-RRC message carrying the secondinformation block includes Sidelink.

In one embodiment, the second information block comprises all or part ofinformation in sl-CSI-RS-Config.

In one embodiment, the second information block is transmitted throughUnicast.

In one embodiment, the second information block is transmitted throughGroupcast.

In one embodiment, the second information block is transmitted inSideLink.

In one embodiment, the second information block is transmitted via a PC5interface.

In one embodiment, the second information block indicates a subcarrierand an OFDM symbol occupied by the first reference signal in atime-frequency unit.

In one embodiment, a time-frequency resource occupied by the firstsignal is used for determining a time-frequency unit occupied by thefirst reference signal.

In one embodiment, the first reference signal and the first signaloccupy a same group of time-frequency units.

In one embodiment, the time-frequency unit occupies 12 consecutivesubcarriers in frequency domain.

In one embodiment, the time-frequency unit occupies one PRB in frequencydomain.

In one embodiment, the time-frequency unit occupies one slot infrequency domain.

In one embodiment, the time-frequency unit occupies one SL slot infrequency domain.

In one embodiment, the second information block indicates a number ofantenna ports occupied by the first reference signal.

In one embodiment, the second information block indicates the firstindex.

In one embodiment, the second information block indicates that the firstindex is associated with the first report configuration.

In one embodiment, the second information block comprises configurationinformation of the second reference signal.

In one embodiment, configuration information of a given reference signalcomprises one or more than one of occupied subcarriers, occupiedmulticarrier symbol(s), occupied code-domain resource, the number ofantenna ports and an RS sequence within a time-frequency unit.

In one embodiment, configuration information of a given reference signalcomprises one or more than one of occupied time-domain resource,occupied frequency-domain resource, occupied code-domain resource, thenumber of antenna ports and an RS sequence.

In one embodiment, the given reference signal is the first referencesignal.

In one embodiment, the given reference signal is the second referencesignal.

In one embodiment, the second information block indicates the secondindex.

In one embodiment, the second information block indicates that thesecond index is associated with the second report configuration.

In one embodiment, the second information block indicates the firstparameter.

In one embodiment, the second information block comprises a thirdinformation sub-block, the third information sub-block comprising apositive integer number of bit(s) and indicating the first parameter.

In one subembodiment, the first parameter is equal to a value of thethird information sub-block.

In one embodiment, the first parameter is a higher layer parameter.

In one embodiment, the first parameter is an RRC parameter.

In one embodiment, the first parameter is a PC5-RRC parameter.

In one embodiment, the first parameter is a sl-LatencyBoundCSI-Reportparameter.

In one embodiment, a name of the first parameter includesLatencyBoundCSI-Report.

In one embodiment, a name of the first parameter includes sl.

In one embodiment, the first parameter is a positive integer.

In one embodiment, the first parameter is a positive integer no lessthan 3 and no greater than 160.

In one embodiment, the first parameter is measured in slots.

In one embodiment, the first parameter is measured in time units.

In one embodiment, the phrase that the first parameter is used todetermine the first time window means that a length of the first timewindow is equal to the first parameter.

In one embodiment, the phrase that the first parameter is used todetermine the first time window means that a number of slots comprisedby the first time window is equal to the first parameter.

In one embodiment, the phrase that the first parameter is used todetermine the first time window means that the first parameter is usedfor determining the S time windows, and the S time windows are used todetermine the first time window.

Embodiment 29

Embodiment 29 illustrates a structure block diagram of a processingdevice in a first node according to one embodiment of the presentdisclosure; as shown in FIG. 29 . In FIG. 29 , a processing device 2900in a first node comprises a first processor 2901.

In Embodiment 29, the first processor 2901 transmits a first signal set.

In Embodiment 29, time-domain resource(s) occupied by one or moresignals comprised in the first signal set is(are) used for determining afirst time window; the first signal set comprises a first signal, thefirst signal comprising a first sub-signal and a first reference signal;the first sub-signal comprises a first field, and the first field of thefirst sub-signal is used for triggering a first CSI report; a firstcondition set is used for determining whether the first node is capableof triggering a second CSI report in the first time window; when thefirst condition set is fulfilled, the first node is unable to triggerthe second CSI report in the first time window; when the first conditionset is not fulfilled, the first node is able to trigger the second CSIreport in the first time window; the first condition set comprises atleast one of a first condition or a second condition; the firstcondition comprises that a number of signals comprised in the firstsignal set is no less than a first threshold; the second conditioncomprises that a first index is equal to a second index, the first CSIreport is associated with the first index, and the second CSI report isassociated with the second index.

In one embodiment, the first signal set comprises S signals, S being apositive integer greater than 1; the first signal is one of the Ssignals; the S signals respectively comprise S first-type sub-signals,and the S signals respectively comprise S reference signals; any one ofthe S first-type sub-signals comprises the first field, and the firstfields respectively comprised by the S first-type sub-signals arerespectively used for triggering S CSI reports; the S signals share asame target receiver.

In one embodiment, time-domain resources occupied by the S signals arerespectively used for determining S time windows, and the S time windowsare used for determining the first time window.

In one embodiment, characterized in that the first processor 2901receives a first information block; herein, the first information blockcomprises a first channel quality and a second channel quality; ameasurement on the first reference signal is used for determining thefirst channel quality and the second channel quality, the first channelquality and the second quality are for a same frequency-domain resource,and respectively correspond to a first received quality and a secondreceived quality, the first channel quality and the second quality beingreal numbers respectively, the first received quality being unequal tothe second received quality.

In one embodiment, the first processor 2901 transmits a third signal ina first time-frequency resource block; herein, a target receiver of thethird signal is a target receiver of the first signal set; a targetchannel quality is used for determining a Modulation and Coding Scheme(MCS) employed by the third signal, and the target channel quality iseither the first channel quality or the second channel quality; whetherthe first time-frequency resource block is reserved is used fordetermining the target channel quality between the first channel qualityand the second channel quality.

In one embodiment, the first processor 2901 transmits a secondinformation block; herein, the second information block comprisesconfiguration information of the first reference signal and a firstparameter, the first parameter being used to determine the first timewindow.

In one embodiment, the first node is a UE.

In one embodiment, the first node is a relay node.

In one embodiment, the first processor 2901 comprises at least one of anantenna 452, the transmitter/receiver 454, the transmitting processor468, the receiving processor 456, the multi-antenna transmittingprocessor 457, the multi-antenna receiving processor 458, thecontroller/processor 459, the memory 460 or the data source 467 inEmbodiment 4.

Embodiment 30

Embodiment 30 illustrates a structure block diagram of a processingdevice in a second node according to one embodiment of the presentdisclosure; as shown in FIG. 30 . In FIG. 30 , a processing device 3000in a second node comprises a second processor 3001.

In Embodiment 30, the second processor 3001 receives a first signal set.

In Embodiment 30, time-domain resource(s) occupied by one or moresignals comprised in the first signal set is(are) used for determining afirst time window; the first signal set comprises a first signal, thefirst signal comprising a first sub-signal and a first reference signal;the first sub-signal comprises a first field, and the first field of thefirst sub-signal is used for triggering a first CSI report; a firstcondition set is used for determining whether a transmitter of the firstsignal set is capable of triggering a second CSI report in the firsttime window; when the first condition set is fulfilled, the transmitterof the first signal set is unable to trigger the second CSI report inthe first time window; when the first condition set is not fulfilled,the transmitter of the first signal set is able to trigger the secondCSI report in the first time window; the first condition set comprisesat least one of a first condition or a second condition; the firstcondition comprises that a number of signals comprised in the firstsignal set is no less than a first threshold; the second conditioncomprises that a first index is equal to a second index, the first CSIreport is associated with the first index, and the second CSI report isassociated with the second index.

In one embodiment, the first signal set comprises S signals, S being apositive integer greater than 1; the first signal is one of the Ssignals; the S signals respectively comprise S first-type sub-signals,and the S signals respectively comprise S reference signals; any one ofthe S first-type sub-signals comprises the first field, and the firstfields respectively comprised by the S first-type sub-signals arerespectively used for triggering S CSI reports; the S signals share asame target receiver.

In one embodiment, time-domain resources occupied by the S signals arerespectively used for determining S time windows, and the S time windowsare used for determining the first time window.

In one embodiment, the second processor 3001 transmits a firstinformation block; the first information block comprises a first channelquality and a second channel quality; a measurement on the firstreference signal is used for determining the first channel quality andthe second channel quality, the first channel quality and the secondquality are for a same frequency-domain resource, and respectivelycorrespond to a first received quality and a second received quality,the first channel quality and the second quality being real numbersrespectively, the first received quality being unequal to the secondreceived quality.

In one embodiment, the second processor 3001 receives a third signal ina first time-frequency resource block; herein, a transmitter of thethird signal is a transmitter of the first signal set; a target channelquality is used for determining an MCS of the third signal, and thetarget channel quality is either the first channel quality or the secondchannel quality; whether the first time-frequency resource block isreserved is used for determining the target channel quality between thefirst channel quality and the second channel quality.

In one embodiment, the second processor 3001 receives a secondinformation block; herein, the second information block comprisesconfiguration information of the first reference signal and a firstparameter, the first parameter being used to determine the first timewindow.

In one embodiment, the second node is abase station.

In one embodiment, the second node is a relay node.

In one embodiment, the second processor 3001 comprises at least one ofthe antenna 420, the transmitter/receiver 418, the transmittingprocessor 416, the receiving processor 470, the multi-antennatransmitting processor 471, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 in Embodiment 4.

Embodiment 31

Embodiment 31 illustrates a flowchart of a first reference signaling anda first signal according to one embodiment of the present disclosure, asshown in FIG. 31 . In 3100 illustrated by FIG. 31 , each box representsa step. Particularly, the sequence of steps arranged does notnecessarily imply specific chronological orders of these steps.

In Embodiment 31, the first node in the present disclosure receives afirst reference signal in step 3101; and transmits a first signal instep 3102. Herein, a transmitting (Tx) power of the first signal is afirst power value, a first reference power value is used for determiningthe first power value, and the first reference power value is linearwith a first pathloss; a first spatial domain filter is used fortransmitting the first signal; the first node uses the first spatialdomain filter to measure the first reference signal to obtain the firstpathloss; a transmitter of the first reference signal is different froma target receiver of the first signal.

In one embodiment, the first reference signal comprises a downlinkreference signal.

In one embodiment, the first reference signal comprises aSynchronisation Signal/physical broadcast channel Block (SSB).

In one embodiment, the first reference signal comprises a Channel StateInformation-Reference Signal (CSI-RS).

In one embodiment, the first reference signal comprises a periodicCSI-RS.

In one embodiment, the first reference signal comprises asemi-persistent CSI-RS.

In one embodiment, the first reference signal comprises a DeModulationReference Signal (DMRS).

In one embodiment, the first reference signal comprises a SoundingReference Signal (SRS).

In one embodiment, the first reference signal is transmitted via a Uuinterface.

In one embodiment, the first reference signal is transmitted inDownlink.

In one embodiment, when the first node is configured with a PhysicalDownlink Control Channel (PDCCH) monitoring a corresponding DCI format0_0, the first reference signal is used by the first node fordetermining a power value of a Physical Uplink Shared CHannel (PUSCH)transmission scheduled by the DCI format 0_0.

In one subembodiment, the first reference signal is used by the firstnode for determining a pathloss used in calculation of a power value ofthe PUSCH transmission scheduled by the DCI format 0_0.

In one embodiment, when the first node is not configured with a PDCCHmonitoring a corresponding DCI format 0_0, the first reference signalcomprises an SSB, and the first node acquires a Master Information Block(MIB) from the first reference signal.

In one embodiment, the first signal comprises a baseband signal.

In one embodiment, the first signal comprises a radio signal.

In one embodiment, the first signal comprises an RF signal.

In one embodiment, the first signal carries a TB.

In one embodiment, the first signal carries a CB.

In one embodiment, the first signal carries a CBG.

In one embodiment, the first signal comprises SCI.

In one embodiment, the first signal does not comprise SCI.

In one embodiment, the first signal comprises a Hybrid Automatic Repeatrequest-Acknowledgement (HARQ-ACK).

In one embodiment, the HARQ-ACK includes ACK and Negative ACK (NACK).

In one embodiment, the first signal comprises a reference signal.

In one embodiment, the first signal does not comprise a referencesignal.

In one embodiment, the first signal is transmitted through Unicast.

In one embodiment, the first signal is transmitted through Groupcast.

In one embodiment, the first signal is transmitted through Broadcast.

In one embodiment, the first signal is transmitted in SideLink.

In one embodiment, the first signal is transmitted via a PC5 interface.

In one embodiment, the first signal and the first reference signal aretransmitted on a same carrier.

In one embodiment, the first signal and the first reference signal aretransmitted on a same BWP.

In one embodiment, the first spatial domain filter includes a Spatialdomain receive filter.

In one embodiment, the first spatial domain filter includes a Spatialdomain transmission filter.

In one embodiment, the QCL assumption of the first signal is used fordetermining the first spatial domain filter.

In one embodiment, a TCI state of the first signal is used fordetermining the first spatial domain filter.

In one embodiment, a DMRS port of the first signal is QCL with a secondreference signal, and the first node uses the first spatial domainfilter to transmit the first signal and the second reference signal.

In one subembodiment, the DMRS port of the first signal is QCL with thesecond reference signal, corresponding to QCL-TypeD.

In one embodiment, a TCI state or a QCL assumption of the first signalindicates a second reference signal, and the first node uses the firstspatial domain filter to transmit the first signal and the secondreference signal.

In one embodiment, a TCI state or a QCL assumption of the first signalindicates a second reference signal, and the first node uses the firstspatial domain filter to transmit the first signal and receive thesecond reference signal.

In one embodiment, the second reference signal comprises a SideLink (SL)reference signal.

In one embodiment, the second reference signal comprises an SL CSI-RS.

In one embodiment, the second reference signal comprises an SLSynchronization Signal (SS)/Physical Sidelink Broadcast CHannel (PSBCH)block.

In one embodiment, the second reference signal comprises an SRS.

In one embodiment, the second reference signal comprises an SL DMRS.

In one embodiment, a transmitter of the first reference signal is afirst reference node, while a target receiver of the first signalincludes a second reference node, the first reference node and thesecond reference node cannot be assumed to be QCL.

In one embodiment, for the specific definition of the QCL, refer to 3GPPTS38.211, section 4.4.

In one embodiment, a transmitter of the first reference signal is a basestation, while a target receiver of the first signal includes a UE.

In one embodiment, a transmitter of the first reference signal is arelay device, while a target receiver of the first signal includes a UE.

In one embodiment, when and only when a target receiver of the firstsignal is different from a transmitter of the first reference signalwill the first pathloss be used for determining a Tx power of the firstsignal.

In one embodiment, whether a target receiver of the first signal is thesame as a transmitter of the first reference signal is used fordetermining whether a Tx power of the first signal is related to thefirst pathloss.

In one embodiment, whether a target receiver of the first signal is thesame as a transmitter of the first reference signal is used fordetermining whether a Tx power of the first signal is related to thefirst pathloss or the second pathloss.

In one embodiment, when a target receiver of the first signal and atransmitter of the first reference signal are the same, the secondpathloss is used for determining a Tx power of the first signal.

Embodiment 32

Embodiment 32 illustrates a flowchart of a wireless transmissionaccording to one embodiment of the present disclosure, as shown in FIG.32 . In FIG. 32 , a second node U5, a first node U6 and a third node U7are communication nodes that mutually communicate through airinterfaces. As shown in FIG. 32 , steps marked by boxes F321-F328 areoptional, respectively. Steps respectively marked by the box F322 andthe box F323 cannot coexist.

The second node U5 transmits a first information block in step S32501;transmits a first reference signal in step S3251; and transmitsreference signals of K first-type reference signals other than the firstreference signal in step S32502; transmits a first signaling in stepS32503; and receives a second signal in step S32504.

The first node U6 receives a first information block in step S32601;transmits a second information block in step S32602; and receives asecond information block in step S32603; receives a first referencesignal in step S3261; and receives reference signals of K first-typereference signals other than the first reference signal in step S32604;receives a third reference signal in step S32605; transmits a firstsignal in step S3262; receives a first signaling in step S32606; andtransmits a second signal in step S32607.

The third node U7 receives a second information block in step S32701;transmits a second information block in step S32702; transmits a thirdsignal in step S32703; and receives a first signal in step S3271.

In Embodiment 32, a transmitting (Tx) power of the first signal is afirst power value, a first reference power value is used by the firstnode U6 for determining the first power value, and the first referencepower value is linear with a first pathloss; a first spatial domainfilter is used by the first node U6 for transmitting the first signal;the first node U6 uses the first spatial domain filter to measure thefirst reference signal to obtain the first pathloss; a transmitter ofthe first reference signal is different from a target receiver of thefirst signal.

In one embodiment, the first node U6 is the first node in the presentdisclosure.

In one embodiment, the second node U5 is the second node in the presentdisclosure.

In one embodiment, the third node U7 is the third node in the presentdisclosure.

In one embodiment, an air interface between the second node U5 and thefirst node U6 is a Uu interface.

In one embodiment, an air interface between the second node U5 and thefirst node U6 includes a cellular link.

In one embodiment, an air interface between the second node U5 and thefirst node U6 includes a radio interface between a base station and aUE.

In one embodiment, an air interface between the second node U5 and thefirst node U6 includes a radio interface between a relay node and a UE.

In one embodiment, an air interface between the third node U7 and thefirst node U6 is a PC5 interface.

In one embodiment, an air interface between the third node U7 and thefirst node U6 includes a sidelink.

In one embodiment, an air interface between the third node U7 and thefirst node U6 includes a radio interface between a relay node and a UE.

In one embodiment, an air interface between the third node U7 and thefirst node U6 includes a radio interface between UEs.

In one embodiment, the first node is a terminal.

In one embodiment, the first node is an automobile.

In one embodiment, the first node is a vehicle.

In one embodiment, the first node is a Road Side Unit (RSU).

In one embodiment, the second node is a maintenance base station for aserving cell of the first node.

In one embodiment, the third node is a terminal.

In one embodiment, the third node is an automobile.

In one embodiment, the third node is a vehicle.

In one embodiment, the third node is a Road Side Unit (RSU).

In one embodiment, the first signal is transmitted on a sidelinkphysical layer data channel (i.e., a sidelink channel capable ofcarrying physical layer data).

In one embodiment, the first signal is transmitted on a PhysicalSidelink Shared Channel (PSSCH).

In one embodiment, the first signal is transmitted on a sidelinkphysical layer control channel (i.e., a sidelink channel only capable ofcarrying physical layer signaling).

In one embodiment, the first signal is transmitted on a PhysicalSidelink Control Channel (PSCCH).

In one embodiment, the first signal is transmitted on a sidelinkphysical layer feedback channel (i.e., a sidelink channel only capableof carrying physical layer HARQ feedback).

In one embodiment, the first signal is transmitted on a PhysicalSidelink Feedback Channel (PSFCH).

In one embodiment, steps in the box F321 in FIG. 32 exist; the firstinformation block is used by the first node U6 for determiningconfiguration information of the first reference signal.

In one embodiment, the first information block is transmitted on aPhysical Broadcast Channel (PBCH).

In one embodiment, the first information block is transmitted on aPhysical Downlink Shared CHannel (PDSCH).

In one embodiment, steps marked by the box F321 in FIG. 32 do not exist.

In one embodiment, the step marked by the box F326 in FIG. 32 exists;the third signal is used by the first node U6 for determining a thirdpathloss; the first reference power value and a third reference powervalue are jointly used by the first node U6 for determining the firstpower value, the third reference power value being linearly correlatedwith the third pathloss; a transmitter of the third signal is differentfrom a transmitter of the first reference signal.

In one embodiment, the third signal comprises a radio signal.

In one embodiment, the third signal comprises a baseband signal.

In one embodiment, the third signal comprises an RF signal.

In one embodiment, the third signal is transmitted in SideLink.

In one embodiment, the third signal is transmitted via a PC5 interface.

In one embodiment, the third signal comprises a sidelink referencesignal.

In one embodiment, the third signal comprises an SL CSI-RS.

In one embodiment, the third signal comprises an SL DMRS.

In one embodiment, the third signal comprises an SRS.

In one embodiment, the third signal comprises an SL SS/PSBCH block.

In one embodiment, the third signal comprises one of a TB, a CBG or aCB.

In one embodiment, the third signal comprises a MAC CE.

In one embodiment, a target receiver of the first signal is the same asa transmitter of the third signal.

In one embodiment, a target receiver of the first signal is differentfrom a transmitter of the third signal.

In one embodiment, steps respectively marked by the box F325 and the boxF326 in FIG. 32 both exist; the transmitter of the third signal is thethird node.

In one embodiment, the step marked by the box F325 in FIG. 32 does notexist, while the step marked by the box F326 in FIG. 32 exists; thetransmitter of the third signal is different from the third node.

In one embodiment, the third signal is earlier than the first referencesignal in time domain.

In one embodiment, the third signal is later than the first referencesignal in time domain.

In one embodiment, the first reference signal and the third signal aretransmitted on a same carrier.

In one embodiment, the first reference signal and the third signal aretransmitted on a same BWP.

In one embodiment, the first signal and the third signal are transmittedon a same carrier.

In one embodiment, the first signal and the third signal are transmittedon a same BWP.

In one embodiment, the third signal is transmitted on a PSSCH.

In one embodiment, steps respectively marked by the box F322 and the boxF326 in FIG. 32 both exist, while the steps marked by the box F323 inFIG. 32 do not exist; the third signal comprises a Reference SignalReceived Power (RSRP) of a third reference signal, and the secondinformation block comprises configuration information of the thirdreference signal.

In one embodiment, steps respectively marked by the box F323 and the boxF326 in FIG. 32 both exist, while the steps marked by the box F322 inFIG. 32 do not exist; the third signal comprises a third referencesignal, and the second information block comprises configurationinformation of the third reference signal.

In one embodiment, the configuration information of the third referencesignal comprises one or more than one of a time-domain resource, afrequency-domain resource, a code-domain resource, an RS sequence, amapping mode, a cyclic shift, an Orthogonal Cover Code (OCC),scrambling, a frequency-domain spreading sequence, a time-domainspreading sequence or a spatial relation.

In one embodiment, the second information block is carried by a higherlayer signaling.

In one embodiment, the second information block is carried by an RRCsignaling.

In one embodiment, the second information block is carried by a PC5 RRCsignaling.

In one embodiment, the second information block comprises information ofall or part of fields in an Information Element (IE).

In one embodiment, the second information block is transmitted inSideLink.

In one embodiment, the second information block is transmitted via a PC5interface.

In one embodiment, the second information block is transmitted via a Uuinterface.

In one embodiment, the second information block is transmitted inDownlink.

In one embodiment, steps marked by the box F324 in FIG. 32 exist; thefirst reference signal is one of the K first-type reference signals, andthe first node U6 uses the first spatial domain filter to measure the Kfirst-type reference signals respectively to obtain K pathlosses; thefirst pathloss is a minimum one of the K pathlosses; a transmitter ofany of the K first-type reference signals is the transmitter of thefirst reference signal.

In one embodiment, steps marked by the box F324 in FIG. 32 do not exist.

In one embodiment, steps marked by the box F328 in FIG. 32 exist; a Txpower of the second signal is a second power value, and a secondreference power value is used by the first node U6 for determining thesecond power value, the second reference power value being linearlycorrelated with a second pathloss; the first node U6 uses a secondspatial domain filter to measure the first reference signal to obtainthe second pathloss; a transmitter of the first reference signal is thesame as a target receiver of the second signal.

In one embodiment, the second signal comprises a baseband signal.

In one embodiment, the second signal comprises a radio signal.

In one embodiment, the second signal comprises an RF signal.

In one embodiment, the second signal carries a TB.

In one embodiment, the second signal carries a CB.

In one embodiment, the second signal carries a CBG.

In one embodiment, the second signal comprises Uplink controlinformation (UCI).

In one embodiment, the second signal comprises an SRS.

In one embodiment, the second signal is transmitted in uplink.

In one embodiment, the second signal is transmitted via a Uu interface.

In one embodiment, the second signal is earlier than the first signal intime domain.

In one embodiment, the second signal is later than the first signal intime domain.

In one embodiment, the first reference signal is a Pathloss Reference RScorresponding to the second signal.

In one embodiment, the second signal is transmitted on a PUSCH; a fieldof Sounding reference signal Resource Indicator (SRI) of a schedulingsignaling of the second signal indicates a first SRI, and the first SRIis used for determining the first reference signal.

In one embodiment, a second signaling indicates that a PathlossReference RS corresponding to the first SRI is the first referencesignal, the second signaling comprises a higher layer signaling, and aname for the second signaling includes SRI-PUSCH-PowerControl.

In one embodiment, configuration information of the second signalindicates that the first reference signal is a Pathloss Reference RScorresponding to the second signal.

In one embodiment, the configuration information of the second signalcomprises one or more than one of a time-domain resource, afrequency-domain resource, a code-domain resource, an RS sequence, amapping mode, a cyclic shift, an Orthogonal Cover Code (OCC), afrequency-domain spreading sequence, a time-domain spreading sequence,power control information or a spatial relation.

In one embodiment, the configuration information of the second signalcomprises one or more than one of a time-domain resource, afrequency-domain resource, a code-domain resource, a low Peak-to-AveragePower Ratio (PAPR) sequence, a pseudo-random sequence, a mapping mode, acyclic shift, an Orthogonal Cover Code (OCC), an orthogonal sequence, aPUCCH format, power control information or a spatial relation.

In one embodiment, configuration information of the second signal isindicated by a higher layer signaling.

In one embodiment, a name of a higher layer signaling indicatingconfiguration information of the second signal includesPUCCH-PowerControl.

In one embodiment, a name of a higher layer signaling indicatingconfiguration information of the second signal includes SRS-Config.

In one embodiment, a transmitter of the first reference signal and atarget receiver of the second signal are QCL.

In one embodiment, a transmitter of the first reference signal and atarget receiver of the second signal are a same base station.

In one embodiment, the second signal is transmitted on an uplinkphysical layer control channel (i.e., an uplink channel only capable ofcarrying physical layer signaling).

In one embodiment, the second signal is transmitted on a PUCCH.

In one embodiment, the second signal is transmitted on an uplinkphysical layer data channel (i.e., an uplink channel capable of carryingphysical layer data).

In one embodiment, the second signal is transmitted on a PUSCH.

In one embodiment, both steps marked by the box F327 and steps marked bythe box F328 in FIG. 32 exist; the first signaling comprises schedulinginformation of the second signal; the scheduling information of thesecond signal comprises one or more than one of a time-domain resource,a frequency-domain resource, a Modulation and Coding Scheme (MCS), aDMRS port, a HARQ process number, a Redundancy Version (RV) or a NewData Indicator (NDI).

In one embodiment, the first signaling comprises a physical layersignaling.

In one embodiment, the first signaling comprises a L1 signaling.

In one embodiment, the first signaling comprises one or more than onefield in a piece of DCI.

In one embodiment, the first signaling comprises DCI used for UpLinkGrant.

In one embodiment, the first signaling comprises DCI used for activationof Configured Uplink Grant Type 2.

In one embodiment, the first signaling comprises an RRC signaling.

In one embodiment, the first signaling comprises a MAC CE.

In one embodiment, steps marked by the box F328 in FIG. 32 exist, whilesteps marked by the box F327 do not.

Embodiment 33

Embodiment 33 illustrates a schematic diagram of a first power valueaccording to one embodiment of the present disclosure; as shown in FIG.33 . In Embodiment 33, the first power value is a smaller value betweenthe first reference power value and a first power threshold.

In one embodiment, the first power value is measured in Watts.

In one embodiment, the first power value is measured in dBm.

In one embodiment, the first power value is no greater than the firstreference power value.

In one embodiment, the first power value is equal to the first referencepower value.

In one embodiment, the first power value is less than the firstreference power value.

In one embodiment, the first power threshold is measured in Watts.

In one embodiment, the first power threshold is measured in dBm.

In one embodiment, the first power threshold is a maximum Tx power ofthe first node in uplink.

In one embodiment, the first power threshold is a maximum poweravailable for transmitting a PUSCH used by the first node.

In one embodiment, the first power threshold is a maximum Tx power ofthe first node in sidelink.

In one embodiment, the first power threshold is a maximum poweravailable for transmitting a PSSCH used by the first node.

In one embodiment, the first power value is unrelated to the secondpathloss.

Embodiment 34

Embodiment 34 illustrates a schematic diagram of a first reference powervalue according to one embodiment of the present disclosure; as shown inFIG. 34 . In Embodiment 34, the first reference power value is linearlycorrelated to the first pathloss, and a linear coefficient between thefirst reference power value and the first pathloss is a firstcoefficient. The symbol “⊏” illustrated in FIG. 34 denotes a linearcorrelation.

In one embodiment, the first reference power value is measured in Watts.

In one embodiment, the first reference power value is measured in dBm.

In one embodiment, the first pathloss is measured in dB.

In one embodiment, the first pathloss is equal to a Tx power of thefirst reference signal being subtracted by an RSRP obtained by the firstnode receiving the first reference signal with the first spatial domainfilter.

In one embodiment, the first pathloss is equal to a Tx power of thefirst reference signal, which is measured in dBm, being subtracted by anRSRP obtained by the first node receiving the first reference signalwith the first spatial domain filter, also measured in dBm.

In one embodiment, the first coefficient is a non-negative real numberno greater than 1.

In one embodiment, the first coefficient is configured by a higher layerparameter.

In one embodiment, the first coefficient is pre-configured.

In one embodiment, the first coefficient is equal to 1.

In one embodiment, the first coefficient is less than 1.

In one embodiment, the first coefficient is α_D used for sidelink powercontrol.

In one embodiment, the first coefficient is α_D based on measurement ofDL pathloss and used for sidelink power control.

In one embodiment, the first reference power value is linearlycorrelated to a first component; and a linear coefficient between thefirst reference power value and the first component is 1; the firstcomponent is a Target power.

In one subembodiment, the first component is P_(o,D) used for sidelinkpower control.

In one subembodiment, the first component is P_(o,D) based onmeasurement of DL pathloss and used for sidelink power control.

In one subembodiment, the first component is configured by a higherlayer parameter.

In one subembodiment, the first component is pre-configured.

In one embodiment, the first reference power value is linearlycorrelated to a second component, and a linear coefficient between thefirst reference power value and the second component is 1; the secondcomponent is related to a bandwidth assigned to the first signal.

In one embodiment, the second component is related to a bandwidthassigned to the first signal which is measured in RBs.

In one embodiment, the second component is related to a subcarrierspacing corresponding to the first signal.

In one embodiment, the first reference power value is linearlycorrelated with the first pathloss, the first component and the secondcomponent respectively; a linear coefficient between the first referencepower value and the first pathloss is the first coefficient; a linearcoefficient between the first reference power value and the firstcomponent and a linear coefficient between the first reference powervalue and the second component are both equal to 1.

In one embodiment, the first reference power value is unrelated to thesecond pathloss.

Embodiment 35

Embodiment 35 illustrates a schematic diagram of a second spatial domainfilter according to one embodiment of the present disclosure; as shownin FIG. 35 . In Embodiment 35, a measurement on the first referencesignal is used by the first node for determining the second spatialdomain filter, the first spatial domain filter being different from thesecond spatial domain filter.

In one embodiment, the second spatial domain filter includes spatialdomain receive filter.

In one embodiment, the second spatial domain filter includes spatialdomain transmission filter.

In one embodiment, the phrase that a measurement on the first referencesignal is used for determining a second spatial domain filter includes ameaning that the measurement on the first reference signal is used bythe first node for determining that the second spatial domain filter isan optimal spatial domain filter for receiving the first referencesignal.

In one embodiment, the phrase that a measurement on the first referencesignal is used for determining a second spatial domain filter includes ameaning that the first node uses S candidate spatial domain filters tomeasure the first reference signal to respectively obtain S receivedqualities, and the S received qualities are used by the first node fordetermining the second spatial domain filter; S is a positive integergreater than 1, and the second spatial domain filter is one of the Scandidate spatial domain filters.

In one subembodiment, a received quality corresponding to the secondspatial domain filter is no poorer than a received quality correspondingto any one of the S candidate spatial domain filters other than thesecond spatial domain filter.

In one subembodiment, the first node randomly selects the second spatialdomain filter from S1 candidate spatial domain filters, and the S1candidate spatial domain filters are candidate spatial domain filterscorresponding to S1 best received qualities out of the S candidatespatial domain filters.

In one embodiment, the phrase that a measurement on the first referencesignal is used for determining a second spatial domain filter includes ameaning that the measurement on the first reference signal is used fordetermining that when the first node uses the second spatial domainfilter to receive the first reference signal, a received qualityobtained therefrom is no poorer than any received quality obtained bythe first node receiving the first reference signal using any spatialdomain filter different from the second spatial filter.

In one embodiment, the received quality comprises an RSRP.

In one embodiment, the received quality comprises a Signal-to-noise andinterference ratio (SINR).

In one embodiment, the received quality comprises a Reference SignalReceived Quality (RSRQ).

In one embodiment, the received quality comprises a Channel QualityIndicator (CQI).

In one embodiment, when the first node is configured with a PDCCHmonitoring a corresponding DCI format 0_0, the first node uses thesecond spatial domain filter to measure the first reference signal fordetermining a power value of a PUSCH transmission scheduled by the DCIformat 0_0.

In one subembodiment, the first node uses the second spatial domainfilter to measure the first reference signal for determining a pathlossused in calculation of a power value of the PUSCH transmission scheduledby the DCI format 0_0.

In one embodiment, when the first node is not configured with a PDCCHmonitoring a corresponding DCI format 0_0, the first node uses thesecond spatial domain filter to receive the first reference signal toacquire a MIB.

In one embodiment, the first node uses the second spatial domain filterto measure the first reference signal to acquire a second pathloss, andthe second pathloss is used by the first node for calculating a Tx powerof an uplink transmission for the transmitter of the first referencesignal and with a corresponding pathloss reference signal being thefirst reference signal.

In one embodiment, the first spatial domain filter is unrelated to themeasurement on the first reference signal.

In one embodiment, the first spatial domain filter is unrelated to the Sreceived qualities.

In one embodiment, the first spatial domain filter is unrelated to thesecond spatial domain filter.

In one embodiment, the first pathloss is unrelated to the second spatialdomain filter.

In one embodiment, a TCI state of the first reference signal is used fordetermining a second spatial domain filter, the first spatial domainfilter being different from the second spatial domain filter.

In one embodiment, the first reference signal and a target referencesignal are QCL, and the target reference signal is used for determininga second spatial domain filter; the first spatial domain filter isdifferent from the second spatial domain filter.

In one embodiment, the first node uses the second spatial domain filterto receive the target reference signal.

In one embodiment, a TCI state of the first reference signal indicatesthe target reference signal.

In one embodiment, a TCI state of the first reference signal indicatesthat the first reference signal and the target reference signal are QCL,corresponding to QCL-TypeD.

In one embodiment, the target reference signal comprises an SSB.

In one embodiment, the target reference signal comprises a CSI-RS.

In one embodiment, when and only when a correlation between the firstspatial domain filter and the second spatial domain filter is less thana first threshold will the first pathloss be used for determining a Txpower of the first signal.

In one embodiment, when a correlation between the first spatial domainfilter and the second spatial domain filter is no less than the firstthreshold, the second pathloss is used for determining a Tx power of thefirst signal.

Embodiment 36

Embodiment 36 illustrates a schematic diagram of a second power valueaccording to one embodiment of the present disclosure; as shown in FIG.36 . In Embodiment 36, the second power value is a smaller value betweenthe second reference power value and a second power threshold.

In one embodiment, the second power value is measured in Watts.

In one embodiment, the second power value is measured in dBm.

In one embodiment, the second power threshold is measured in Watts.

In one embodiment, the second power threshold is measured in dBm.

In one embodiment, the second power threshold is a maximum Tx power ofthe first node in uplink.

In one embodiment, the second power threshold is a maximum poweravailable for transmitting a PUSCH used by the first node.

In one embodiment, the second power value is unrelated to the firstpathloss.

Embodiment 37

Embodiment 37 illustrates a schematic diagram of a second referencepower value according to one embodiment of the present disclosure; asshown in FIG. 37 . In Embodiment 37, the second reference power value islinearly correlated to the second pathloss; and a linear coefficientbetween the second reference power value and the second pathloss is asecond coefficient. The symbol” “illustrated in FIG. 34 denotes a linearcorrelation.

In one embodiment, the second pathloss is equal to a Tx power of thefirst reference signal being subtracted by an RSRP obtained by the firstnode receiving the first reference signal with the second spatial domainfilter.

In one embodiment, the second pathloss is equal to a Tx power of thefirst reference signal, which is measured in dBm, being subtracted by anRSRP obtained by the first node receiving the first reference signalwith the second spatial domain filter, also measured in dBm.

In one embodiment, the second pathloss is unrelated to the first spatialdomain filter.

In one embodiment, the first pathloss is no less than the secondpathloss.

In one embodiment, the first pathloss is greater than the secondpathloss.

In one embodiment, the first pathloss is unequal to the second pathloss.

In one embodiment, the second coefficient is a non-negative real number.

In one embodiment, the second coefficient is equal to 1.

In one embodiment, the second coefficient is configured by a higherlayer parameter.

In one embodiment, the second coefficient is pre-configured.

In one embodiment, the second coefficient is α_(b,f,c) (j) used forPUSCH power control.

In one embodiment, the second coefficient is α_(SRS,b,f,c) (q_s) usedfor SRS power control on a Uu interface.

In one embodiment, the second reference power value is linear with afifth component, and a linear coefficient between the second referencepower value and the fifth component is 1; the fifth component is aTarget power.

In one subembodiment, the fifth component is P_o used for uplink powercontrol.

In one embodiment, the second reference power value is linear with asixth component, and a linear coefficient between the second referencepower value and the sixth component is 1; the sixth component is relatedto a bandwidth measured in RBs assigned to the second signal.

In one embodiment, the second reference power value is linear with aseventh component, and a linear coefficient between the second referencepower value and the seventh component is 1; the seventh component isrelated to an MCS of the second signal.

In one embodiment, the second reference power value is linear with aneighth component, and a linear coefficient between the second referencepower value and the eighth component is 1; the eighth component is apower control adjustment status.

In one embodiment, the second reference power value is linear with aninth component, and a linear coefficient between the second referencepower value and the ninth component is 1; the ninth component is relatedto a number of multicarrier symbols occupied by the second signal.

In one embodiment, the second reference power value is linear with atenth component, and a linear coefficient between the second referencepower value and the tenth component is 1; the tenth component is relatedto a PUCCH format corresponding to the second signal.

In one embodiment, the second reference power value is linearlycorrelated with the second pathloss, the fifth component, the sixthcomponent, the seventh component and the eighth component respectively;the linear coefficient between the second reference power value and thesecond pathloss is the second coefficient; the linear coefficientsbetween the second reference power value and the fifth component, thesecond reference power value and the sixth component, the secondreference power value and the seventh component, and the secondreference power value and the eighth component, are equal to 1,respectively.

In one embodiment, the second reference power value is linearlycorrelated with the second pathloss, the fifth component, the sixthcomponent, the eighth component, the ninth component and the tenthcomponent respectively; the linear coefficients between the secondreference power value and the second pathloss, the second referencepower value and the fifth component, the second reference power valueand the sixth component, the second reference power value and the eighthcomponent, the second reference power value and the ninth component, andthe second reference power value and the tenth component, are equal to1, respectively.

In one embodiment, the second reference power value is linearlycorrelated with the second pathloss, the fifth component, the sixthcomponent and the eighth component respectively; the linear coefficientbetween the second reference power value and the second pathloss is thesecond coefficient; the linear coefficients between the second referencepower value and the fifth component, the second reference power valueand the sixth component, and the second reference power value and theeighth component, are equal to 1, respectively.

In one embodiment, the second reference power value is unrelated to thefirst pathloss.

Embodiment 38

Embodiment 38 illustrates a schematic diagram of a relation between afirst pathloss and K pathlosses according to one embodiment of thepresent disclosure; as shown in FIG. 38 . In Embodiment 38, the firstnode uses the first spatial domain filter to measure the K first-typereference signals to respectively obtain the K pathlosses; the firstpathloss is a minimum one of the K pathlosses. In FIG. 38 , indexes forthe K first-type reference signals and the K pathlosses are #0 . . . ,and #(K−1) respectively.

In one embodiment, any of the K first-type reference signals comprises adownlink reference signal.

In one embodiment, the K first-type reference signals comprise an SSB.

In one embodiment, the K first-type reference signals comprise a CSI-RS.

In one embodiment, the K first-type reference signals comprise an SRS.

In one embodiment, the K first-type reference signals comprise a DMRS.

In one embodiment, the K first-type reference signals are respectivelytransmitted via Uu interfaces.

In one embodiment, the K first-type reference signals are respectivelytransmitted in sidelink.

In one embodiment, of the K first-type reference signals there are twofirst-type reference signals that cannot be assumed as QCL.

In one embodiment, of the K first-type reference signals there are twofirst-type reference signals that cannot be assumed as QCL,corresponding to QCL-TypeD.

In one embodiment, any two of the K first-type reference signals cannotbe assumed as QCL.

In one embodiment, any two of the K first-type reference signals cannotbe assumed as QCL, corresponding to QCL-TypeD.

In one embodiment, the K first-type reference signals are transmitted ona same carrier.

In one embodiment, the K first-type reference signals are transmitted ona same BWR

In one embodiment, the K first-type reference signals are respectivelyconfigured by an RRC signaling.

In one embodiment, the K first-type reference signals respectivelycorrespond to K CORESETPool indexes; the K CORESETPool indexes aremutually unequal, and are respectively used for identifying K CORESETPools.

In one embodiment, the K first-type reference signals are respectivelyused by the first node for determining power values of PUSCHtransmissions scheduled by the DCI format 0_0 respectively received inthe K CORESET Pools.

In one embodiment, the K first-type reference signals are respectivelyused by the first node for determining pathlosses respectively used incalculation of power values of PUSCH transmissions scheduled by the DCIformat 0_0 respectively received in the K CORESET Pools.

In one embodiment, K is equal to 2.

In one embodiment, K is greater than 2.

In one embodiment, of the K first-type reference signals there is afirst-type reference signal earlier than the first reference signal intime domain.

In one embodiment, of the K first-type reference signals there is afirst-type reference signal later than the first reference signal intime domain.

In one embodiment, the K pathlosses are respectively measured in dB.

In one embodiment, any of the K pathlosses is equal to a Tx power of acorresponding first-type reference signal being subtracted by an RSRPobtained by the first node receiving the corresponding first-typereference signal with the first spatial domain filter.

In one embodiment, any of the K pathlosses is equal to a Tx power of acorresponding first-type reference signal, which is measured in dBm,being subtracted by an RSRP obtained by the first node receiving thecorresponding first-type reference signal with the first spatial domainfilter, also measured in dBm.

In one embodiment, the first reference signal is one of the K first-typereference signals corresponding to the first pathloss.

Embodiment 39

Embodiment 39 illustrates a schematic diagram of a relation between afirst spatial domain filter and P spatial domain filters according toone embodiment of the present disclosure; as shown in FIG. 39 . InEmbodiment 39, the first node uses the P spatial domain filters tomeasure the first reference signal respectively to obtain the Ppathlosses, and the P pathlosses are used for determining the firstspatial domain filter out of the P spatial domain filters. In FIG. 39 ,indexes for the P spatial domain filters and the P pathlosses are #0, .. . and #(P−1), respectively.

In one embodiment, the P spatial domain filters respectively comprisespatial domain receive filters.

In one embodiment, the P spatial domain filters respectively comprisespatial domain transmission filters.

In one embodiment, the P spatial domain filters correspond to Psecond-type reference signals respectively; for any given spatial domainfilter of the P spatial domain filters, the first node uses the givenspatial domain filter to receive or transmit a corresponding second-typereference signal; any second-type reference signal of the P second-typereference signals comprises an SL reference signal.

In one embodiment, the P second-type reference signals comprise an SLCSI-RS.

In one embodiment, the P second-type reference signals comprise an SLSS/PSBCH block.

In one embodiment, the P second-type reference signals comprise an SRS.

In one embodiment, the P second-type reference signals comprise an SLDMRS.

In one embodiment, any two of the P second-type reference signals arenot QCL.

In one embodiment, any two of the P second-type reference signals arenot QCL, corresponding to QCL-TypeD.

In one embodiment, the P second-type reference signals share a sametransmitter.

In one embodiment, of the P second-type reference signals there are twosecond-type reference signals corresponding to different transmitters.

In one embodiment, of the P second-type reference signals there is onesecond-type reference signal of which the transmitter is the first node.

In one embodiment, a transmitter of any of the P second-type referencesignals is the first node.

In one embodiment, of the P second-type reference signals there is onesecond-type reference signal of which the transmitter is a targetreceiver of the first signal.

In one embodiment, a transmitter of any of the P second-type referencesignals is a target receiver of the first signal.

In one embodiment, the P pathlosses are measured in dB.

In one embodiment, any given pathloss of the P pathlosses is equal to aTx power of the first reference signal being subtracted by an RSRPobtained by the first node receiving the first reference signal with oneof the P spatial domain filters that corresponds to the given pathloss.

In one embodiment, any given pathloss of the P pathlosses is equal to aTx power of the first reference signal, which is measured in dBm, beingsubtracted by an RSRP obtained by the first node receiving the firstreference signal with one of the P spatial domain filters thatcorresponds to the given pathloss, which is measured in dBm.

In one embodiment, the first pathloss is one of the P pathlosses thatcorresponds to the first spatial domain filter.

In one embodiment, the spatial domain filter is one of the P spatialdomain filters that corresponds to a maximum pathloss of the Ppathlosses.

In one embodiment, the spatial domain filter is one of the P spatialdomain filters that corresponds to a minimum pathloss of the Ppathlosses.

In one embodiment, the spatial domain filter is a spatial domain filterin a first filter subset; a received quality obtained by the first nodereceiving a fourth signal with the first spatial domain filter is noworse than a received quality obtained by the first node receiving thefourth signal with any spatial domain filter other than the firstspatial domain filter in the first filter subset; a transmitter of thefourth signal is a target receiver of the first signal.

In one embodiment, the first filter subset consists of all spatialdomain filters corresponding to pathlosses no less than a secondthreshold among the P spatial domain filters.

In one embodiment, P power values are linearly correlated with the Ppathlosses respectively, and a linear coefficient between any one of theP power values and a corresponding pathloss is the first coefficient;the first filter subset consists of all spatial domain filterscorresponding to power values no less than the third reference powervalue among the P spatial domain filters.

In one subembodiment, any of the P power values is linearly correlatedwith the first component and the second component respectively, bothcorresponding to a linear coefficient being 1.

In one embodiment, the first node uses the P spatial domain filters toreceive a fourth signal to respectively obtain P received qualities; thefirst spatial domain filter is a spatial domain filter in a secondfilter subset, the second filter subset consists of all spatial domainfilters corresponding to received qualities no worse than a thirdthreshold among the P spatial domain filters; a pathloss of the Ppathlosses corresponding to the first spatial domain filter is nosmaller than another pathloss among the P pathlosses corresponding toany spatial domain filter in the second filter subset other than thefirst spatial domain filter; a transmitter of the fourth signal is atarget receiver of the first signal.

In one embodiment, the third threshold is related to a best receivedquality among the P received qualities.

In one embodiment, the fourth signal comprises a radio signal.

In one embodiment, the fourth signal comprises an RF signal.

In one embodiment, the fourth signal is transmitted in SideLink.

In one embodiment, the fourth signal is transmitted via a PC5 interface.

In one embodiment, the fourth signal comprises a CSI-RS.

In one embodiment, the fourth signal comprises a DMRS.

In one embodiment, the fourth signal is transmitted on a PSSCH.

Embodiment 40

Embodiment 40 illustrates a schematic diagram of a first power valueaccording to one embodiment of the present disclosure; as shown in FIG.40 . In Embodiment 40, the first power value is a minimum value of thefirst reference power value and the third reference power value.

In one embodiment, the first reference power value and the thirdreference power value are jointly used for determining the first powervalue.

In one embodiment, the first power value is no greater than the thirdreference power value.

In one embodiment, the first power value is equal to the third referencepower value.

In one embodiment, the first power value is less than the thirdreference power value.

Embodiment 41

Embodiment 41 illustrates a schematic diagram of a first power valueaccording to one embodiment of the present disclosure; as shown in FIG.41 . In Embodiment 41, the first power value is a minimum value amongthe first reference power value, the third reference power value and afirst power threshold.

Embodiment 42

Embodiment 42 illustrates a schematic diagram of a first power valueaccording to one embodiment of the present disclosure; as shown in FIG.42 . In Embodiment 42, the first power value is a minimum value amongthe first reference power value, the third reference power value, afirst power threshold and a third power threshold.

In one embodiment, the third power threshold is measured in Watts.

In one embodiment, the third power threshold is measured in dBm.

In one embodiment, the third power threshold is related to a prioritylevel of the first signal.

In one embodiment, the third power threshold is related to a ChannelBusy Ratio (CBR) measured in a slot (i-N); the first signal istransmitted in a slot i, and N refers to congestion control processingtime.

In one embodiment, the first power threshold is a maximum Tx power ofthe first node in uplink, while the third power threshold is a maximumTx power of the first node in sidelink.

Embodiment 43

Embodiment 43 illustrates a schematic diagram of a third reference powervalue according to one embodiment of the present disclosure; as shown inFIG. 43 . In Embodiment 43, the third reference power value is linearlycorrelated with the third pathloss; and a linear coefficient between thethird reference power value and the third pathloss is a thirdcoefficient. The symbol “| |” illustrated in FIG. 43 denotes a linearcorrelation.

In one embodiment, the third reference power value is measured in Watts.

In one embodiment, the third reference power value is measured in dBm.

In one embodiment, the third pathloss is measured in dB.

In one embodiment, the third pathloss is equal to a Tx power of a thirdreference signal being subtracted by an RSRP of the third referencesignal; the third reference signal comprises a sidelink referencesignal.

In one embodiment, the third pathloss is equal to a Tx power of a thirdreference signal, which is measured in dBm, being subtracted by an RSRPof the third reference signal, which is also measured in dBm; the thirdreference signal comprises a sidelink reference signal.

In one embodiment, the third reference signal comprises an SL CSI-RS.

In one embodiment, the third reference signal comprises an SL DMRS.

In one embodiment, the third reference signal comprises an SRS.

In one embodiment, the third reference signal comprises an SL SS/PSBCHblock.

In one embodiment, a transmitter of the third reference signal is atarget receiver of the first signal.

In one embodiment, a transmitter of the third reference signal is thefirst node.

In one embodiment, a transmitter of the third reference signal isdifferent from a target receiver of the first signal and the first node.

In one embodiment, the third signal comprises the third referencesignal.

In one embodiment, the third signal comprises an RSRP of the thirdreference signal.

In one embodiment, the third coefficient is a non-negative real numberno greater than 1.

In one embodiment, the third coefficient is configured by a higher layerparameter.

In one embodiment, the third coefficient is pre-configured.

In one embodiment, the third coefficient is α_SL used for power controlin sidelink.

In one embodiment, the third coefficient is α_SL based on measurement ofSL pathloss and used for power control in sidelink.

In one embodiment, the third reference power value is linearlycorrelated to a third component, and a linear coefficient between thethird reference power value and the third component is 1; the thirdcomponent is a Target power.

In one subembodiment, the third component is P_(O,SL) used for sidelinkpower control.

In one subembodiment, the third component is P_(O,SL) based onmeasurement of SL pathloss and used for sidelink power control.

In one subembodiment, the third component is pre-configured.

In one subembodiment, the third component is configured by a higherlayer parameter.

In one embodiment, the third reference power value is linearlycorrelated to a second component, and a linear coefficient between thethird reference power value and the second component is 1; the secondcomponent is related to a bandwidth allocated to the first signal.

In one embodiment, the third reference power value is linearlycorrelated to the third pathloss, the third component and the secondcomponent respectively; the linear coefficient between the thirdreference power value and the third pathloss is the third coefficient;linear coefficients between the third reference power value and thethird component, and the third reference power value and the secondcomponent are 1, respectively.

Embodiment 44

Embodiment 44 illustrates a schematic diagram of a first informationblock according to one embodiment of the present disclosure; as shown inFIG. 44 . In Embodiment 44, the first information block is used fordetermining configuration information of the first reference signal.

In one embodiment, the configuration information of the first referencesignal comprises one or more of a time-domain resource, afrequency-domain resource, a code-domain resource, an RS sequence, amapping mode, a cyclic shift, an OCC, a frequency-domain spreadingsequence, or a time-domain spreading sequence.

In one embodiment, the configuration information of the first referencesignal comprises an index of the first reference signal.

In one embodiment, the configuration information of the first referencesignal comprises a TCI state.

In one embodiment, the first information block is carried by a higherlayer signaling.

In one embodiment, the first information block is carried by an RRCsignaling.

In one embodiment, the first information block is carried by a MAC CEsignaling.

In one embodiment, the first information block is carried by an SSB.

In one embodiment, the first information block comprises information ofall or part of fields in an IE.

In one embodiment, the first information block comprises information ofall or part of fields in a ControlResourceSet IE.

In one embodiment, the first information block comprises all or part ofinformation in an SSB.

In one embodiment, the first information block comprises all or part ofinformation in a Physical Broadcast Channel (PBCH) payload correspondingto an SSB.

In one embodiment, the first information block is transmitted via a Uuinterface.

In one embodiment, the first information block is transmitted indownlink.

In one embodiment, the first reference signal comprises an SSB, and aDMRS sequence of a PBCH carrying the first information block is used fordetermining all or part of bits comprised in an index of the firstreference signal.

In one embodiment, the first reference signal comprises an SSB, and thefirst information block indicates part of bits comprised in an index ofthe first reference signal.

In one embodiment, the first information block indicates configurationinformation of the first reference signal.

In one embodiment, the first reference signal comprises a CSI-RS, andthe first information block indicates an index of the first referencesignal.

Embodiment 45

Embodiment 45 illustrates a structure block diagram of a processingdevice in a first node according to one embodiment of the presentdisclosure; as shown in FIG. 45 . In FIG. 45 , a processing device 4500in a first node comprises a first receiver 4501 and a first transmitter4502.

In Embodiment 45, the first receiver 4501 receives a first referencesignal; the first transmitter 4502 transmits a first signal.

In Embodiment 45, a transmitting (Tx) power of the first signal is afirst power value, a first reference power value is used for determiningthe first power value, and the first reference power value is linearwith a first pathloss; a first spatial domain filter is used fortransmitting the first signal; the first receiver 4501 uses the firstspatial domain filter to measure the first reference signal to obtainthe first pathloss; a transmitter of the first reference signal isdifferent from a target receiver of the first signal.

In one embodiment, a measurement on the first reference signal is usedfor determining a second spatial domain filter, the first spatial domainfilter being different from the second spatial domain filter.

In one embodiment, the first transmitter 4502 transmits a second signal;herein, a transmitting (Tx) power of the second signal is a second powervalue, the second reference power value is used for determining thesecond power value, and the second reference power value is linear witha second pathloss; the first receiver 4501 uses a second spatial domainfilter to measure the first reference signal to obtain the secondpathloss; a transmitter of the first reference signal is the same as atarget receiver of the second signal.

In one embodiment, the first receiver 4501 receives other referencesignal(s) of K first-type reference signals other than the firstreference signal, K being a positive integer greater than 1, the firstreference signal being one of the K first-type reference signals;herein, the first receiver 4501 uses the first spatial domain filter tomeasure the K first-type reference signals respectively to obtain Kpathlosses; the first pathloss is a smallest one of the K pathlosses; atransmitter of any first-type reference signal of the K first-typereference signals is a transmitter of the first reference signal.

In one embodiment, the first spatial domain filter is one of P spatialdomain filters, P being a positive integer; the first receiver 4501 usesthe P spatial domain filters to measure the first reference signalrespectively to obtain P pathlosses, and the P pathlosses are used fordetermining the first spatial domain filter out of the P spatial domainfilters.

In one embodiment, the first receiver 4501 receives a third signal;herein, the third signal is used to determine a third pathloss; thefirst reference power value and a third reference power value arejointly used for determining the first power value, the third referencepower value being linear with the third pathloss; a transmitter of thethird signal is different from a transmitter of the first referencesignal.

In one embodiment, the first receiver 4501 receives a first informationblock; herein, the first information block is used for determiningconfiguration information of the first reference signal.

In one embodiment, the first node is a UE.

In one embodiment, the first node is a relay node.

In one embodiment, the first receiver 4501 comprises at least one of theantenna 452, the receiver 454, the receiving processor 456, themulti-antenna receiving processor 458, the controller/processor 459, thememory 460 or the data source 467 in Embodiment 4.

In one embodiment, the first transmitter 4502 comprises at least one ofthe antenna 452, the transmitter 454, the transmitting processor 468,the multi-antenna transmitting processor 457, the controller/processor459, the memory 460 or the data source 467 in Embodiment 4.

Embodiment 46

Embodiment 46 illustrates a structure block diagram of a processingdevice in a second node according to one embodiment of the presentdisclosure; as shown in FIG. 46 . In FIG. 46 , a processing device 4600in a second node comprises a first processor 4601.

In Embodiment 46, the first processor 4601 transmits a first referencesignal.

In Embodiment 46, a transmitter of a first signal uses a first spatialdomain filter to measure the first reference signal to obtain a firstpathloss; a transmitting (Tx) power of the first signal is a first powervalue, a first reference power value is used for determining the firstpower value, and the first reference power value is linear with thefirst pathloss; the first spatial domain filter is used for transmittingthe first signal; a target receiver of the first signal is differentfrom the second node.

In one embodiment, a measurement on the first reference signal is usedfor determining a second spatial domain filter, the first spatial domainfilter being different from the second spatial domain filter.

In one embodiment, the first processor 4601 receives a second signal;herein, a transmitting (Tx) power of the second signal is a second powervalue, the second reference power value is used for determining thesecond power value, and the second reference power value is linear witha second pathloss; a transmitter of the first signal uses a secondspatial domain filter to measure the first reference signal to obtainthe second pathloss; a target receiver of the second signal is thesecond node.

In one embodiment, the first processor 4601 transmits other referencesignal(s) of K first-type reference signals other than the firstreference signal, K being a positive integer greater than 1, the firstreference signal being one of the K first-type reference signals;herein, a transmitter of the first signal uses the first spatial domainfilter to measure the K first-type reference signals respectively toobtain K pathlosses; the first pathloss is a smallest one of the Kpathlosses.

In one embodiment, the first spatial domain filter is one of P spatialdomain filters, P being a positive integer; a transmitter of the firstsignal uses the P spatial domain filters to measure the first referencesignal respectively to obtain P pathlosses, and the P pathlosses areused for determining the first spatial domain filter out of the Pspatial domain filters.

In one embodiment, a third signal is used to determine a third pathloss;the first reference power value and a third reference power value arejointly used for determining the first power value, the third referencepower value being linear with the third pathloss; a transmitter of thethird signal is different from a transmitter of the first referencesignal.

In one embodiment, the first processor 4601 transmits a firstinformation block; herein, the first information block is used fordetermining configuration information of the first reference signal.

In one embodiment, the second node is a base station.

In one embodiment, the second node is a relay node.

In one embodiment, the first processor 4601 comprises at least one ofthe antenna 420, the transmitter/receiver 418, the transmittingprocessor 416, the receiving processor 470, the multi-antennatransmitting processor 471, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 in Embodiment 4.

Embodiment 47

Embodiment 47 illustrates a structure block diagram of a processingdevice in a third node according to one embodiment of the presentdisclosure; as shown in FIG. 47 . In FIG. 47 , a processing device 4700in a third node comprises a second processor 4701.

In Embodiment 47, the second processor 4701 receives a first signal.

In Embodiment 47, a transmitting (Tx) power of the first signal is afirst power value, a first reference power value is used for determiningthe first power value, and the first reference power value is linearwith a first pathloss; a first spatial domain filter is used fortransmitting the first signal; a transmitter of the first signal usesthe first spatial domain filter to measure a first reference signal toobtain the first pathloss; a transmitter of the first reference signalis different from the third node.

In one embodiment, a measurement on the first reference signal is usedfor determining a second spatial domain filter, the first spatial domainfilter being different from the second spatial domain filter.

In one embodiment, a transmitter of the first signal transmits a secondsignal, and a target receiver of the second signal is the same as atransmitter of the first reference signal; a Tx power of the secondsignal is a second power value, the second reference power value is usedfor determining the second power value, and the second reference powervalue is linear with a second pathloss; a transmitter of the firstsignal uses a second spatial domain filter to measure the firstreference signal to obtain the second pathloss.

In one embodiment, the first reference signal is one of K first-typereference signals, K being a positive integer greater than 1; atransmitter of the first signal uses the first spatial domain filter tomeasure the K first-type reference signals respectively to obtain Kpathlosses; the first pathloss is a smallest one of the K pathlosses; atransmitter of any first-type reference signal of the K first-typereference signals is a transmitter of the first reference signal.

In one embodiment, the first spatial domain filter is one of P spatialdomain filters, P being a positive integer; the first receiver 4501 usesthe P spatial domain filters to measure the first reference signalrespectively to obtain P pathlosses, and the P pathlosses are used fordetermining the first spatial domain filter out of the P spatial domainfilters.

In one embodiment, a third signal is used by a transmitter of the firstsignal for determining a third pathloss; the first reference power valueand a third reference power value are jointly used for determining thefirst power value, the third reference power value being linear with thethird pathloss; a transmitter of the third signal is different from atransmitter of the first reference signal.

In one embodiment, the second processor 4701 transmits the third signal.

In one embodiment, the third node is a UE.

In one embodiment, the third node is a relay node.

In one embodiment, the second processor 4701 comprises at least one ofthe antenna 420, the transmitter/receiver 418, the transmittingprocessor 416, the receiving processor 470, the multi-antennatransmitting processor 471, the multi-antenna receiving processor 472,the controller/processor 475 or the memory 476 in Embodiment 4.

The ordinary skill in the art may understand that all or part of stepsin the above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer readablestorage medium, for example Read-Only-Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part of steps in the above embodimentsalso may be implemented by one or more integrated circuits.Correspondingly, each module unit in the above embodiment may beimplemented in the form of hardware, or in the form of software functionmodules. The present disclosure is not limited to any combination ofhardware and software in specific forms. The UE and terminal in thepresent disclosure include but are not limited to unmanned aerialvehicles, communication modules on unmanned aerial vehicles,telecontrolled aircrafts, aircrafts, diminutive airplanes, mobilephones, tablet computers, notebooks, vehicle-mounted communicationequipment, wireless sensor, network cards, terminals for Internet ofThings (IOT), RFID terminals, NB-IOT terminals, Machine TypeCommunication (MTC) terminals, enhanced MTC (eMTC) terminals, datacards, low-cost mobile phones, low-cost tablet computers, etc. The basestation or system device in the present disclosure includes but is notlimited to macro-cellular base stations, micro-cellular base stations,home base stations, relay base station, gNB (NR node B), TransmitterReceiver Point (TRP), and other radio communication equipment.

The above are merely the preferred embodiments of the present disclosureand are not intended to limit the scope of protection of the presentdisclosure. Any modification, equivalent substitute and improvement madewithin the spirit and principle of the present disclosure are intendedto be included within the scope of protection of the present disclosure.

What is claimed is:
 1. A first node for wireless communications,comprising: a first receiver, receiving a first reference signal; and afirst transmitter, transmitting a first signal; wherein, a transmitting(Tx) power of the first signal is a first power value, a first referencepower value is used for determining the first power value, and the firstreference power value is linear with a first pathloss; a first spatialdomain filter is used for transmitting the first signal; the first nodeuses the first spatial domain filter to measure the first referencesignal to obtain the first pathloss; a transmitter of the firstreference signal is different from a target receiver of the firstsignal.
 2. The first node according to claim 1, wherein a measurement onthe first reference signal is used for determining a second spatialdomain filter, the first spatial domain filter being different from thesecond spatial domain filter.
 3. The first node according to claim 2,wherein the first transmitter transmits a second signal; herein, atransmitting (Tx) power of the second signal is a second power value,the second reference power value is used for determining the secondpower value, and the second reference power value is linear with asecond pathloss; the first receiver uses a second spatial domain filterto measure the first reference signal to obtain the second pathloss; atransmitter of the first reference signal is the same as a targetreceiver of the second signal.
 4. The first node according to claim 1,wherein the first receiver receives other reference signal(s) of Kfirst-type reference signals other than the first reference signal, Kbeing a positive integer greater than 1, the first reference signalbeing one of the K first-type reference signals; herein, the firstreceiver uses the first spatial domain filter to measure the Kfirst-type reference signals respectively to obtain K pathlosses; thefirst pathloss is a smallest one of the K pathlosses; a transmitter ofany first-type reference signal of the K first-type reference signals isthe transmitter of the first reference signal.
 5. The first nodeaccording to claim 4, wherein the first spatial domain filter is one ofP spatial domain filters, P being a positive integer; the first receiveruses the P spatial domain filters to measure the first reference signalrespectively to obtain P pathlosses, and the P pathlosses are used fordetermining the first spatial domain filter out of the P spatial domainfilters.
 6. The first node according to claim 1, wherein the firstreceiver receives a third signal; herein, the third signal is used todetermine a third pathloss; the first reference power value and a thirdreference power value are jointly used for determining the first powervalue, the third reference power value being linear with the thirdpathloss; a transmitter of the third signal is different from thetransmitter of the first reference signal.
 7. The first node accordingto claim 1, wherein the first receiver 4501 receives a first informationblock; herein, the first information block is used for determiningconfiguration information of the first reference signal.
 8. A secondnode for wireless communications, comprising: a first processor,transmitting a first reference signal; wherein, a transmitter of a firstsignal uses a first spatial domain filter to measure the first referencesignal to obtain a first pathloss; a transmitting (Tx) power of thefirst signal is a first power value, a first reference power value isused for determining the first power value, and the first referencepower value is linear with the first pathloss; the first spatial domainfilter is used for transmitting the first signal; a target receiver ofthe first signal is different from the second node.
 9. The second nodeaccording to claim 8, wherein a measurement on the first referencesignal is used for determining a second spatial domain filter, the firstspatial domain filter being different from the second spatial domainfilter.
 10. The second node according to claim 9, wherein the firstprocessor receives a second signal; herein, a transmitting (Tx) power ofthe second signal is a second power value, the second reference powervalue is used for determining the second power value, and the secondreference power value is linear with a second pathloss; the transmitterof the first signal uses a second spatial domain filter to measure thefirst reference signal to obtain the second pathloss; a target receiverof the second signal is the second node.
 11. The second node accordingto claim 8, wherein the first processor transmits other referencesignal(s) of K first-type reference signals other than the firstreference signal, K being a positive integer greater than 1, the firstreference signal being one of the K first-type reference signals;herein, the transmitter of the first signal uses the first spatialdomain filter to measure the K first-type reference signals respectivelyto obtain K pathlosses; the first pathloss is a smallest one of the Kpathlosses.
 12. The second node according to claim 11, wherein the firstspatial domain filter is one of P spatial domain filters, P being apositive integer; the transmitter of the first signal uses the P spatialdomain filters to measure the first reference signal respectively toobtain P pathlosses, and the P pathlosses are used for determining thefirst spatial domain filter out of the P spatial domain filters.
 13. Thesecond node according to claim 8, wherein a third signal is used todetermine a third pathloss; the first reference power value and a thirdreference power value are jointly used for determining the first powervalue, the third reference power value being linear with the thirdpathloss; a transmitter of the third signal is different from the secondnode.
 14. The second node according to claim 8, wherein the firstprocessor transmits a first information block; herein, the firstinformation block is used for determining configuration information ofthe first reference signal.
 15. A method in a first node for wirelesscommunications, comprising: receiving a first reference signal; andtransmitting a first signal; wherein, a transmitting (Tx) power of thefirst signal is a first power value, a first reference power value isused for determining the first power value, and the first referencepower value is linear with a first pathloss; a first spatial domainfilter is used for transmitting the first signal; the first node usesthe first spatial domain filter to measure the first reference signal toobtain the first pathloss; a transmitter of the first reference signalis different from a target receiver of the first signal.
 16. The methodaccording to claim 15, wherein a measurement on the first referencesignal is used for determining a second spatial domain filter, the firstspatial domain filter being different from the second spatial domainfilter.
 17. The method according to claim 16, comprising: transmitting asecond signal; wherein, a transmitting (Tx) power of the second signalis a second power value, the second reference power value is used fordetermining the second power value, and the second reference power valueis linear with a second pathloss; the first node uses a second spatialdomain filter to measure the first reference signal to obtain the secondpathloss; the transmitter of the first reference signal is the same as atarget receiver of the second signal.
 18. The method according to claim15, comprising: receiving other reference signal(s) of K first-typereference signals other than the first reference signal, K being apositive integer greater than 1, the first reference signal being one ofthe K first-type reference signals; wherein, the first node uses thefirst spatial domain filter to measure the K first-type referencesignals respectively to obtain K pathlosses; the first pathloss is asmallest one of the K pathlosses; a transmitter of any first-typereference signal of the K first-type reference signals is thetransmitter of the first reference signal.
 19. The method according toclaim 18, wherein the first spatial domain filter is one of P spatialdomain filters, P being a positive integer; the first node uses the Pspatial domain filters to measure the first reference signalrespectively to obtain P pathlosses, and the P pathlosses are used fordetermining the first spatial domain filter out of the P spatial domainfilters.
 20. The method according to claim 15, comprising at least oneof the following: receiving a third signal; herein, the third signal isused to determine a third pathloss; the first reference power value anda third reference power value are jointly used for determining the firstpower value, the third reference power value being linear with the thirdpathloss; a transmitter of the third signal is different from thetransmitter of the first reference signal; receiving a first informationblock; herein, the first information block is used for determiningconfiguration information of the first reference signal.